Add new core tests to run_tests/run_python.sh
Add new core tests to run_tests/run_python.sh

The tests don't currently get discovered by py.test due to their use of
the Python 2.7+ load_tests protocol.

pszemus/grpc,thinkerou/grpc,bjori/grpc,firebase/grpc,pszemus/grpc,carl-mastrangelo/grpc,vsco/grpc,rjshade/grpc,jboeuf/grpc,soltanmm/grpc,bogdandrutu/grpc,mehrdada/grpc,ejona86/grpc,larsonmpdx/grpc,infinit/grpc,perumaalgoog/grpc,baylabs/grpc,hstefan/grpc,ncteisen/grpc,kriswuollett/grpc,podsvirov/grpc,pszemus/grpc,y-zeng/grpc,wangyikai/grpc,quizlet/grpc,thunderboltsid/grpc,a-veitch/grpc,doubi-workshop/grpc,ppietrasa/grpc,Vizerai/grpc,thinkerou/grpc,nicolasnoble/grpc,baylabs/grpc,soltanmm-google/grpc,chrisdunelm/grpc,yongni/grpc,pmarks-net/grpc,y-zeng/grpc,cgvarela/grpc,stanley-cheung/grpc,jboeuf/grpc,ejona86/grpc,ananthonline/grpc,crast/grpc,jtattermusch/grpc,royalharsh/grpc,PeterFaiman/ruby-grpc-minimal,zhimingxie/grpc,yinsu/grpc,greasypizza/grpc,firebase/grpc,apolcyn/grpc,ctiller/grpc,malexzx/grpc,stanley-cheung/grpc,carl-mastrangelo/grpc,pszemus/grpc,ncteisen/grpc,kumaralokgithub/grpc,cgvarela/grpc,Vizerai/grpc,firebase/grpc,thinkerou/grpc,wcevans/grpc,bjori/grpc,jtattermusch/grpc,dgquintas/grpc,kumaralokgithub/grpc,larsonmpdx/grpc,PeterFaiman/ruby-grpc-minimal,doubi-workshop/grpc,bjori/grpc,grani/grpc,ipylypiv/grpc,deepaklukose/grpc,nicolasnoble/grpc,ipylypiv/grpc,rjshade/grpc,tamihiro/grpc,jcanizales/grpc,gpndata/grpc,bjori/grpc,w4-sjcho/grpc,doubi-workshop/grpc,PeterFaiman/ruby-grpc-minimal,soltanmm-google/grpc,tamihiro/grpc,perumaalgoog/grpc,goldenbull/grpc,deepaklukose/grpc,dklempner/grpc,doubi-workshop/grpc,tengyifei/grpc,ncteisen/grpc,ejona86/grpc,soltanmm-google/grpc,kpayson64/grpc,infinit/grpc,thunderboltsid/grpc,malexzx/grpc,msmania/grpc,rjshade/grpc,goldenbull/grpc,thinkerou/grpc,bjori/grpc,vjpai/grpc,yongni/grpc,geffzhang/grpc,w4-sjcho/grpc,daniel-j-born/grpc,msiedlarek/grpc,w4-sjcho/grpc,bogdandrutu/grpc,tengyifei/grpc,ofrobots/grpc,goldenbull/grpc,jboeuf/grpc,yongni/grpc,dklempner/grpc,Vizerai/grpc,andrewpollock/grpc,greasypizza/grpc,maxwell-demon/grpc,LuminateWireless/grpc,chrisdunelm/grpc,stanley-cheung/grpc,maxwell-demon/grpc,PeterFaiman/ruby-grpc-minimal,podsvirov/grpc,crast/grpc,kskalski/grpc,kriswuollett/grpc,larsonmpdx/grpc,grani/grpc,grani/grpc,bjori/grpc,yinsu/grpc,mehrdada/grpc,kskalski/grpc,maxwell-demon/grpc,wangyikai/grpc,goldenbull/grpc,ipylypiv/grpc,a11r/grpc,ncteisen/grpc,vjpai/grpc,7anner/grpc,pszemus/grpc,makdharma/grpc,rjshade/grpc,adelez/grpc,greasypizza/grpc,fichter/grpc,fuchsia-mirror/third_party-grpc,carl-mastrangelo/grpc,geffzhang/grpc,muxi/grpc,sreecha/grpc,grpc/grpc,donnadionne/grpc,VcamX/grpc,grani/grpc,infinit/grpc,arkmaxim/grpc,wcevans/grpc,chrisdunelm/grpc,sreecha/grpc,gpndata/grpc,hstefan/grpc,stanley-cheung/grpc,thinkerou/grpc,pszemus/grpc,fichter/grpc,perumaalgoog/grpc,podsvirov/grpc,donnadionne/grpc,dgquintas/grpc,vsco/grpc,vsco/grpc,ctiller/grpc,7anner/grpc,firebase/grpc,VcamX/grpc,mehrdada/grpc,zhimingxie/grpc,donnadionne/grpc,tengyifei/grpc,podsvirov/grpc,PeterFaiman/ruby-grpc-minimal,madongfly/grpc,vsco/grpc,madongfly/grpc,fichter/grpc,Vizerai/grpc,VcamX/grpc,malexzx/grpc,donnadionne/grpc,carl-mastrangelo/grpc,yang-g/grpc,7anner/grpc,ananthonline/grpc,zhimingxie/grpc,ncteisen/grpc,crast/grpc,sreecha/grpc,philcleveland/grpc,murgatroid99/grpc,fuchsia-mirror/third_party-grpc,chrisdunelm/grpc,ejona86/grpc,andrewpollock/grpc,dgquintas/grpc,gpndata/grpc,muxi/grpc,soltanmm/grpc,geffzhang/grpc,gpndata/grpc,pmarks-net/grpc,daniel-j-born/grpc,VcamX/grpc,greasypizza/grpc,royalharsh/grpc,wangyikai/grpc,perumaalgoog/grpc,simonkuang/grpc,kskalski/grpc,ppietrasa/grpc,bjori/grpc,soltanmm-google/grpc,fuchsia-mirror/third_party-grpc,larsonmpdx/grpc,ncteisen/grpc,ipylypiv/grpc,kriswuollett/grpc,ejona86/grpc,maxwell-demon/grpc,w4-sjcho/grpc,JoeWoo/grpc,msmania/grpc,PeterFaiman/ruby-grpc-minimal,wangyikai/grpc,kpayson64/grpc,yang-g/grpc,bogdandrutu/grpc,fichter/grpc,fichter/grpc,LuminateWireless/grpc,a11r/grpc,sreecha/grpc,kriswuollett/grpc,thunderboltsid/grpc,jcanizales/grpc,JoeWoo/grpc,msmania/grpc,Crevil/grpc,dklempner/grpc,donnadionne/grpc,firebase/grpc,Crevil/grpc,7anner/grpc,andrewpollock/grpc,Crevil/grpc,fuchsia-mirror/third_party-grpc,rjshade/grpc,y-zeng/grpc,baylabs/grpc,ananthonline/grpc,a-veitch/grpc,greasypizza/grpc,msiedlarek/grpc,arkmaxim/grpc,LuminateWireless/grpc,JoeWoo/grpc,chrisdunelm/grpc,ananthonline/grpc,dgquintas/grpc,pmarks-net/grpc,ofrobots/grpc,kumaralokgithub/grpc,ofrobots/grpc,cgvarela/grpc,sreecha/grpc,malexzx/grpc,kskalski/grpc,tamihiro/grpc,ofrobots/grpc,miselin/grpc,goldenbull/grpc,donnadionne/grpc,baylabs/grpc,murgatroid99/grpc,pmarks-net/grpc,andrewpollock/grpc,kumaralokgithub/grpc,soltanmm/grpc,wcevans/grpc,ejona86/grpc,murgatroid99/grpc,ejona86/grpc,bjori/grpc,kpayson64/grpc,wangyikai/grpc,royalharsh/grpc,grpc/grpc,cgvarela/grpc,thunderboltsid/grpc,nicolasnoble/grpc,yinsu/grpc,greasypizza/grpc,infinit/grpc,hstefan/grpc,dgquintas/grpc,deepaklukose/grpc,deepaklukose/grpc,apolcyn/grpc,a-veitch/grpc,madongfly/grpc,nicolasnoble/grpc,tamihiro/grpc,msiedlarek/grpc,kpayson64/grpc,Crevil/grpc,a11r/grpc,kriswuollett/grpc,w4-sjcho/grpc,ctiller/grpc,adelez/grpc,yongni/grpc,a-veitch/grpc,pszemus/grpc,VcamX/grpc,andrewpollock/grpc,jboeuf/grpc,greasypizza/grpc,zhimingxie/grpc,a11r/grpc,yinsu/grpc,yang-g/grpc,adelez/grpc,a11r/grpc,pmarks-net/grpc,MakMukhi/grpc,hstefan/grpc,madongfly/grpc,quizlet/grpc,ctiller/grpc,a11r/grpc,kpayson64/grpc,tengyifei/grpc,malexzx/grpc,simonkuang/grpc,zhimingxie/grpc,PeterFaiman/ruby-grpc-minimal,ananthonline/grpc,bogdandrutu/grpc,soltanmm/grpc,yugui/grpc,arkmaxim/grpc,pmarks-net/grpc,bogdandrutu/grpc,larsonmpdx/grpc,jtattermusch/grpc,deepaklukose/grpc,vjpai/grpc,madongfly/grpc,murgatroid99/grpc,msiedlarek/grpc,miselin/grpc,podsvirov/grpc,maxwell-demon/grpc,vjpai/grpc,sreecha/grpc,ejona86/grpc,ipylypiv/grpc,makdharma/grpc,thunderboltsid/grpc,cgvarela/grpc,leifurhauks/grpc,mehrdada/grpc,crast/grpc,dklempner/grpc,yugui/grpc,arkmaxim/grpc,matt-kwong/grpc,y-zeng/grpc,matt-kwong/grpc,doubi-workshop/grpc,hstefan/grpc,makdharma/grpc,miselin/grpc,firebase/grpc,fuchsia-mirror/third_party-grpc,firebase/grpc,soltanmm/grpc,firebase/grpc,PeterFaiman/ruby-grpc-minimal,vjpai/grpc,ofrobots/grpc,perumaalgoog/grpc,quizlet/grpc,muxi/grpc,philcleveland/grpc,msiedlarek/grpc,fuchsia-mirror/third_party-grpc,makdharma/grpc,msiedlarek/grpc,philcleveland/grpc,matt-kwong/grpc,a11r/grpc,geffzhang/grpc,simonkuang/grpc,arkmaxim/grpc,yinsu/grpc,adelez/grpc,yugui/grpc,jcanizales/grpc,vjpai/grpc,leifurhauks/grpc,Crevil/grpc,bogdandrutu/grpc,perumaalgoog/grpc,leifurhauks/grpc,zhimingxie/grpc,deepaklukose/grpc,yang-g/grpc,vjpai/grpc,deepaklukose/grpc,jcanizales/grpc,ejona86/grpc,quizlet/grpc,philcleveland/grpc,firebase/grpc,yinsu/grpc,kpayson64/grpc,pmarks-net/grpc,wangyikai/grpc,PeterFaiman/ruby-grpc-minimal,nicolasnoble/grpc,daniel-j-born/grpc,7anner/grpc,arkmaxim/grpc,yugui/grpc,Vizerai/grpc,thunderboltsid/grpc,daniel-j-born/grpc,grpc/grpc,madongfly/grpc,mehrdada/grpc,sreecha/grpc,yugui/grpc,wcevans/grpc,thinkerou/grpc,rjshade/grpc,soltanmm-google/grpc,larsonmpdx/grpc,yang-g/grpc,simonkuang/grpc,dklempner/grpc,adelez/grpc,larsonmpdx/grpc,vsco/grpc,apolcyn/grpc,a-veitch/grpc,ctiller/grpc,podsvirov/grpc,tamihiro/grpc,yugui/grpc,makdharma/grpc,vsco/grpc,bjori/grpc,tamihiro/grpc,jboeuf/grpc,miselin/grpc,baylabs/grpc,carl-mastrangelo/grpc,bogdandrutu/grpc,ofrobots/grpc,ipylypiv/grpc,Vizerai/grpc,crast/grpc,adelez/grpc,jcanizales/grpc,msiedlarek/grpc,dklempner/grpc,dgquintas/grpc,fuchsia-mirror/third_party-grpc,crast/grpc,LuminateWireless/grpc,makdharma/grpc,infinit/grpc,jtattermusch/grpc,gpndata/grpc,quizlet/grpc,jcanizales/grpc,stanley-cheung/grpc,ananthonline/grpc,malexzx/grpc,ncteisen/grpc,sreecha/grpc,kriswuollett/grpc,malexzx/grpc,chrisdunelm/grpc,Vizerai/grpc,simonkuang/grpc,ejona86/grpc,7anner/grpc,jboeuf/grpc,LuminateWireless/grpc,7anner/grpc,vsco/grpc,a11r/grpc,doubi-workshop/grpc,yongni/grpc,crast/grpc,maxwell-demon/grpc,soltanmm-google/grpc,firebase/grpc,muxi/grpc,MakMukhi/grpc,JoeWoo/grpc,arkmaxim/grpc,fichter/grpc,murgatroid99/grpc,philcleveland/grpc,soltanmm-google/grpc,zhimingxie/grpc,thinkerou/grpc,doubi-workshop/grpc,royalharsh/grpc,quizlet/grpc,fichter/grpc,ncteisen/grpc,Vizerai/grpc,muxi/grpc,JoeWoo/grpc,carl-mastrangelo/grpc,mehrdada/grpc,MakMukhi/grpc,kskalski/grpc,carl-mastrangelo/grpc,apolcyn/grpc,matt-kwong/grpc,jtattermusch/grpc,thinkerou/grpc,ejona86/grpc,adelez/grpc,kpayson64/grpc,leifurhauks/grpc,matt-kwong/grpc,kskalski/grpc,greasypizza/grpc,chrisdunelm/grpc,kriswuollett/grpc,Vizerai/grpc,msmania/grpc,kumaralokgithub/grpc,geffzhang/grpc,donnadionne/grpc,jboeuf/grpc,yugui/grpc,mehrdada/grpc,stanley-cheung/grpc,MakMukhi/grpc,philcleveland/grpc,mehrdada/grpc,vjpai/grpc,simonkuang/grpc,ananthonline/grpc,geffzhang/grpc,madongfly/grpc,ppietrasa/grpc,jtattermusch/grpc,simonkuang/grpc,thinkerou/grpc,mehrdada/grpc,mehrdada/grpc,ofrobots/grpc,hstefan/grpc,goldenbull/grpc,carl-mastrangelo/grpc,yang-g/grpc,crast/grpc,jboeuf/grpc,LuminateWireless/grpc,7anner/grpc,daniel-j-born/grpc,maxwell-demon/grpc,MakMukhi/grpc,muxi/grpc,sreecha/grpc,pszemus/grpc,geffzhang/grpc,a-veitch/grpc,daniel-j-born/grpc,vsco/grpc,hstefan/grpc,jcanizales/grpc,miselin/grpc,tengyifei/grpc,miselin/grpc,rjshade/grpc,Crevil/grpc,soltanmm/grpc,vjpai/grpc,nicolasnoble/grpc,matt-kwong/grpc,ppietrasa/grpc,muxi/grpc,leifurhauks/grpc,VcamX/grpc,ipylypiv/grpc,pszemus/grpc,pmarks-net/grpc,andrewpollock/grpc,soltanmm/grpc,grpc/grpc,tamihiro/grpc,wangyikai/grpc,simonkuang/grpc,msmania/grpc,nicolasnoble/grpc,a-veitch/grpc,sreecha/grpc,ncteisen/grpc,stanley-cheung/grpc,chrisdunelm/grpc,philcleveland/grpc,ctiller/grpc,infinit/grpc,donnadionne/grpc,daniel-j-born/grpc,tengyifei/grpc,mehrdada/grpc,yongni/grpc,stanley-cheung/grpc,dgquintas/grpc,y-zeng/grpc,nicolasnoble/grpc,LuminateWireless/grpc,adelez/grpc,fuchsia-mirror/third_party-grpc,goldenbull/grpc,dgquintas/grpc,ncteisen/grpc,wcevans/grpc,msiedlarek/grpc,soltanmm/grpc,ananthonline/grpc,Vizerai/grpc,ofrobots/grpc,grani/grpc,stanley-cheung/grpc,hstefan/grpc,ctiller/grpc,infinit/grpc,thinkerou/grpc,perumaalgoog/grpc,doubi-workshop/grpc,jboeuf/grpc,daniel-j-born/grpc,ananthonline/grpc,greasypizza/grpc,kriswuollett/grpc,cgvarela/grpc,cgvarela/grpc,wcevans/grpc,yang-g/grpc,leifurhauks/grpc,baylabs/grpc,soltanmm/grpc,grpc/grpc,pmarks-net/grpc,kumaralokgithub/grpc,malexzx/grpc,hstefan/grpc,grani/grpc,geffzhang/grpc,apolcyn/grpc,kskalski/grpc,kpayson64/grpc,JoeWoo/grpc,tamihiro/grpc,Crevil/grpc,fuchsia-mirror/third_party-grpc,goldenbull/grpc,infinit/grpc,wangyikai/grpc,murgatroid99/grpc,arkmaxim/grpc,baylabs/grpc,royalharsh/grpc,LuminateWireless/grpc,w4-sjcho/grpc,goldenbull/grpc,perumaalgoog/grpc,royalharsh/grpc,JoeWoo/grpc,jboeuf/grpc,ctiller/grpc,VcamX/grpc,yongni/grpc,madongfly/grpc,chrisdunelm/grpc,yugui/grpc,VcamX/grpc,dgquintas/grpc,nicolasnoble/grpc,7anner/grpc,bogdandrutu/grpc,fuchsia-mirror/third_party-grpc,dklempner/grpc,yang-g/grpc,stanley-cheung/grpc,perumaalgoog/grpc,ncteisen/grpc,jboeuf/grpc,baylabs/grpc,donnadionne/grpc,kskalski/grpc,royalharsh/grpc,firebase/grpc,kpayson64/grpc,murgatroid99/grpc,w4-sjcho/grpc,soltanmm-google/grpc,mehrdada/grpc,yinsu/grpc,andrewpollock/grpc,muxi/grpc,a-veitch/grpc,jtattermusch/grpc,muxi/grpc,quizlet/grpc,Vizerai/grpc,adelez/grpc,bogdandrutu/grpc,thinkerou/grpc,Crevil/grpc,carl-mastrangelo/grpc,grani/grpc,simonkuang/grpc,dgquintas/grpc,geffzhang/grpc,makdharma/grpc,tengyifei/grpc,daniel-j-born/grpc,thunderboltsid/grpc,miselin/grpc,royalharsh/grpc,jcanizales/grpc,zhimingxie/grpc,jboeuf/grpc,y-zeng/grpc,tamihiro/grpc,ctiller/grpc,grani/grpc,grpc/grpc,jtattermusch/grpc,donnadionne/grpc,pszemus/grpc,podsvirov/grpc,ppietrasa/grpc,malexzx/grpc,dgquintas/grpc,ncteisen/grpc,thinkerou/grpc,nicolasnoble/grpc,kumaralokgithub/grpc,ctiller/grpc,y-zeng/grpc,cgvarela/grpc,gpndata/grpc,ipylypiv/grpc,makdharma/grpc,jtattermusch/grpc,carl-mastrangelo/grpc,ctiller/grpc,tengyifei/grpc,MakMukhi/grpc,nicolasnoble/grpc,VcamX/grpc,stanley-cheung/grpc,thunderboltsid/grpc,matt-kwong/grpc,andrewpollock/grpc,msmania/grpc,ppietrasa/grpc,kskalski/grpc,a-veitch/grpc,gpndata/grpc,kpayson64/grpc,philcleveland/grpc,fichter/grpc,matt-kwong/grpc,ppietrasa/grpc,kumaralokgithub/grpc,jcanizales/grpc,JoeWoo/grpc,grpc/grpc,larsonmpdx/grpc,MakMukhi/grpc,murgatroid99/grpc,ipylypiv/grpc,kumaralokgithub/grpc,sreecha/grpc,rjshade/grpc,msiedlarek/grpc,grpc/grpc,apolcyn/grpc,thunderboltsid/grpc,arkmaxim/grpc,deepaklukose/grpc,w4-sjcho/grpc,leifurhauks/grpc,apolcyn/grpc,kriswuollett/grpc,tengyifei/grpc,firebase/grpc,philcleveland/grpc,y-zeng/grpc,carl-mastrangelo/grpc,apolcyn/grpc,wcevans/grpc,w4-sjcho/grpc,MakMukhi/grpc,doubi-workshop/grpc,miselin/grpc,podsvirov/grpc,maxwell-demon/grpc,donnadionne/grpc,matt-kwong/grpc,jtattermusch/grpc,ctiller/grpc,ppietrasa/grpc,rjshade/grpc,grpc/grpc,yugui/grpc,ofrobots/grpc,msmania/grpc,larsonmpdx/grpc,murgatroid99/grpc,soltanmm-google/grpc,grpc/grpc,stanley-cheung/grpc,royalharsh/grpc,kpayson64/grpc,quizlet/grpc,leifurhauks/grpc,dklempner/grpc,deepaklukose/grpc,nicolasnoble/grpc,PeterFaiman/ruby-grpc-minimal,grpc/grpc,y-zeng/grpc,grani/grpc,a11r/grpc,leifurhauks/grpc,muxi/grpc,wcevans/grpc,andrewpollock/grpc,vjpai/grpc,pszemus/grpc,chrisdunelm/grpc,vjpai/grpc,infinit/grpc,gpndata/grpc,zhimingxie/grpc,baylabs/grpc,vsco/grpc,ppietrasa/grpc,maxwell-demon/grpc,muxi/grpc,yinsu/grpc,wangyikai/grpc,vjpai/grpc,ejona86/grpc,carl-mastrangelo/grpc,apolcyn/grpc,chrisdunelm/grpc,jtattermusch/grpc,madongfly/grpc,grpc/grpc,yang-g/grpc,msmania/grpc,Crevil/grpc,MakMukhi/grpc,msmania/grpc,miselin/grpc,yongni/grpc,muxi/grpc,quizlet/grpc,dklempner/grpc,makdharma/grpc,podsvirov/grpc,sreecha/grpc,yinsu/grpc,yongni/grpc,murgatroid99/grpc,JoeWoo/grpc,wcevans/grpc,LuminateWireless/grpc,pszemus/grpc,donnadionne/grpc,jtattermusch/grpc