Add rename test that used to be really slow
Add rename test that used to be really slow

Before the optimization commits, this test used to take about 20
seconds to run on my machine.  Afterwards, there is still a couple
seconds of data setup, but the actual diff and rename detection
runs in a fraction of a second.

sygool/libgit2,mrksrm/Mingijura,oaastest/libgit2,linquize/libgit2,kissthink/libgit2,Corillian/libgit2,yongthecoder/libgit2,dleehr/libgit2,ardumont/libgit2,KTXSoftware/libgit2,whoisj/libgit2,amyvmiwei/libgit2,skabel/manguse,claudelee/libgit2,skabel/manguse,skabel/manguse,saurabhsuniljain/libgit2,JIghtuse/libgit2,ardumont/libgit2,swisspol/DEMO-libgit2,oaastest/libgit2,iankronquist/libgit2,swisspol/DEMO-libgit2,stewid/libgit2,chiayolin/libgit2,sygool/libgit2,JIghtuse/libgit2,mrksrm/Mingijura,kissthink/libgit2,falqas/libgit2,mcanthony/libgit2,ardumont/libgit2,Tousiph/Demo1,Corillian/libgit2,linquize/libgit2,stewid/libgit2,mingyaaaa/libgit2,stewid/libgit2,sim0629/libgit2,oaastest/libgit2,t0xicCode/libgit2,t0xicCode/libgit2,raybrad/libit2,t0xicCode/libgit2,leoyanggit/libgit2,jeffhostetler/public_libgit2,dleehr/libgit2,magnus98/TEST,mcanthony/libgit2,raybrad/libit2,yongthecoder/libgit2,Corillian/libgit2,jflesch/libgit2-mariadb,mcanthony/libgit2,MrHacky/libgit2,Aorjoa/libgit2_maked_lib,ardumont/libgit2,maxiaoqian/libgit2,stewid/libgit2,joshtriplett/libgit2,jeffhostetler/public_libgit2,dleehr/libgit2,chiayolin/libgit2,rcorre/libgit2,jflesch/libgit2-mariadb,magnus98/TEST,spraints/libgit2,mrksrm/Mingijura,joshtriplett/libgit2,saurabhsuniljain/libgit2,yosefhackmon/libgit2,claudelee/libgit2,Aorjoa/libgit2_maked_lib,yongthecoder/libgit2,nokiddin/libgit2,joshtriplett/libgit2,swisspol/DEMO-libgit2,Snazz2001/libgit2,yosefhackmon/libgit2,JIghtuse/libgit2,evhan/libgit2,rcorre/libgit2,sim0629/libgit2,Snazz2001/libgit2,mrksrm/Mingijura,jeffhostetler/public_libgit2,spraints/libgit2,Tousiph/Demo1,nokiddin/libgit2,evhan/libgit2,amyvmiwei/libgit2,Corillian/libgit2,MrHacky/libgit2,kissthink/libgit2,falqas/libgit2,magnus98/TEST,JIghtuse/libgit2,jflesch/libgit2-mariadb,sygool/libgit2,nokiddin/libgit2,mcanthony/libgit2,jflesch/libgit2-mariadb,evhan/libgit2,nokiddin/libgit2,iankronquist/libgit2,Snazz2001/libgit2,since2014/libgit2,kenprice/libgit2,MrHacky/libgit2,joshtriplett/libgit2,mingyaaaa/libgit2,sim0629/libgit2,stewid/libgit2,falqas/libgit2,KTXSoftware/libgit2,since2014/libgit2,since2014/libgit2,falqas/libgit2,MrHacky/libgit2,leoyanggit/libgit2,KTXSoftware/libgit2,linquize/libgit2,yongthecoder/libgit2,JIghtuse/libgit2,maxiaoqian/libgit2,chiayolin/libgit2,Snazz2001/libgit2,yongthecoder/libgit2,MrHacky/libgit2,spraints/libgit2,joshtriplett/libgit2,leoyanggit/libgit2,yosefhackmon/libgit2,spraints/libgit2,rcorre/libgit2,whoisj/libgit2,linquize/libgit2,Aorjoa/libgit2_maked_lib,raybrad/libit2,linquize/libgit2,mcanthony/libgit2,jeffhostetler/public_libgit2,Tousiph/Demo1,KTXSoftware/libgit2,since2014/libgit2,maxiaoqian/libgit2,kenprice/libgit2,mhp/libgit2,t0xicCode/libgit2,chiayolin/libgit2,skabel/manguse,whoisj/libgit2,KTXSoftware/libgit2,Corillian/libgit2,t0xicCode/libgit2,mingyaaaa/libgit2,magnus98/TEST,magnus98/TEST,since2014/libgit2,kissthink/libgit2,mhp/libgit2,yosefhackmon/libgit2,sygool/libgit2,MrHacky/libgit2,swisspol/DEMO-libgit2,sygool/libgit2,stewid/libgit2,Tousiph/Demo1,dleehr/libgit2,yosefhackmon/libgit2,maxiaoqian/libgit2,jeffhostetler/public_libgit2,jflesch/libgit2-mariadb,magnus98/TEST,saurabhsuniljain/libgit2,kenprice/libgit2,swisspol/DEMO-libgit2,swisspol/DEMO-libgit2,kenprice/libgit2,chiayolin/libgit2,saurabhsuniljain/libgit2,t0xicCode/libgit2,amyvmiwei/libgit2,sim0629/libgit2,mingyaaaa/libgit2,rcorre/libgit2,amyvmiwei/libgit2,maxiaoqian/libgit2,skabel/manguse,ardumont/libgit2,saurabhsuniljain/libgit2,kissthink/libgit2,saurabhsuniljain/libgit2,linquize/libgit2,falqas/libgit2,nokiddin/libgit2,oaastest/libgit2,leoyanggit/libgit2,yosefhackmon/libgit2,Snazz2001/libgit2,claudelee/libgit2,chiayolin/libgit2,kenprice/libgit2,oaastest/libgit2,spraints/libgit2,ardumont/libgit2,Tousiph/Demo1,mingyaaaa/libgit2,iankronquist/libgit2,iankronquist/libgit2,raybrad/libit2,jeffhostetler/public_libgit2,mcanthony/libgit2,falqas/libgit2,spraints/libgit2,skabel/manguse,leoyanggit/libgit2,kenprice/libgit2,raybrad/libit2,nokiddin/libgit2,sim0629/libgit2,kissthink/libgit2,rcorre/libgit2,joshtriplett/libgit2,Aorjoa/libgit2_maked_lib,since2014/libgit2,mhp/libgit2,whoisj/libgit2,whoisj/libgit2,claudelee/libgit2,dleehr/libgit2,claudelee/libgit2,sygool/libgit2,mhp/libgit2,whoisj/libgit2,sim0629/libgit2,leoyanggit/libgit2,claudelee/libgit2,Aorjoa/libgit2_maked_lib,oaastest/libgit2,yongthecoder/libgit2,amyvmiwei/libgit2,amyvmiwei/libgit2,Corillian/libgit2,rcorre/libgit2,JIghtuse/libgit2,dleehr/libgit2,jflesch/libgit2-mariadb,KTXSoftware/libgit2,mrksrm/Mingijura,mingyaaaa/libgit2,maxiaoqian/libgit2,Tousiph/Demo1,mhp/libgit2,mhp/libgit2,evhan/libgit2,iankronquist/libgit2,mrksrm/Mingijura,iankronquist/libgit2,Snazz2001/libgit2