Add a FakeVirDomainSnapshot and return it from snapshotCreateXML. Fixes libvirt snapshot tests.
Add a FakeVirDomainSnapshot and return it from snapshotCreateXML.
Fixes libvirt snapshot tests.

imsplitbit/nova,NoBodyCam/TftpPxeBootBareMetal,aristanetworks/arista-ovs-nova,Juniper/nova,mikalstill/nova,gooddata/openstack-nova,CloudServer/nova,akash1808/nova_test_latest,whitepages/nova,LoHChina/nova,Juniper/nova,yrobla/nova,dstroppa/openstack-smartos-nova-grizzly,vmturbo/nova,zaina/nova,devoid/nova,orbitfp7/nova,nikesh-mahalka/nova,affo/nova,jianghuaw/nova,jianghuaw/nova,sacharya/nova,rajalokan/nova,apporc/nova,iuliat/nova,hanlind/nova,watonyweng/nova,Stavitsky/nova,gooddata/openstack-nova,eneabio/nova,kimjaejoong/nova,sridevikoushik31/nova,alexandrucoman/vbox-nova-driver,mikalstill/nova,mmnelemane/nova,CiscoSystems/nova,tianweizhang/nova,savi-dev/nova,JianyuWang/nova,tealover/nova,raildo/nova,alaski/nova,JioCloud/nova_test_latest,redhat-openstack/nova,NoBodyCam/TftpPxeBootBareMetal,fnordahl/nova,tudorvio/nova,joker946/nova,zaina/nova,fajoy/nova,klmitch/nova,dstroppa/openstack-smartos-nova-grizzly,maelnor/nova,rahulunair/nova,maheshp/novatest,eayunstack/nova,petrutlucian94/nova,OpenAcademy-OpenStack/nova-scheduler,leilihh/nova,ewindisch/nova,klmitch/nova,sridevikoushik31/openstack,ted-gould/nova,scripnichenko/nova,plumgrid/plumgrid-nova,CCI-MOC/nova,cloudbase/nova,spring-week-topos/nova-week,aristanetworks/arista-ovs-nova,Francis-Liu/animated-broccoli,savi-dev/nova,cyx1231st/nova,dawnpower/nova,maelnor/nova,josephsuh/extra-specs,cloudbau/nova,edulramirez/nova,usc-isi/extra-specs,Stavitsky/nova,luogangyi/bcec-nova,shahar-stratoscale/nova,openstack/nova,noironetworks/nova,sridevikoushik31/openstack,Juniper/nova,ruslanloman/nova,eneabio/nova,petrutlucian94/nova_dev,raildo/nova,Tehsmash/nova,josephsuh/extra-specs,devendermishrajio/nova,ntt-sic/nova,TwinkleChawla/nova,tanglei528/nova,sridevikoushik31/openstack,cernops/nova,fnordahl/nova,devendermishrajio/nova_test_latest,varunarya10/nova_test_latest,dawnpower/nova,fajoy/nova,BeyondTheClouds/nova,double12gzh/nova,isyippee/nova,NewpTone/stacklab-nova,berrange/nova,CEG-FYP-OpenStack/scheduler,JianyuWang/nova,mikalstill/nova,maoy/zknova,DirectXMan12/nova-hacking,usc-isi/nova,CCI-MOC/nova,sileht/deb-openstack-nova,ewindisch/nova,bclau/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,rahulunair/nova,cyx1231st/nova,TieWei/nova,isyippee/nova,affo/nova,vmturbo/nova,luogangyi/bcec-nova,noironetworks/nova,citrix-openstack-build/nova,Tehsmash/nova,NeCTAR-RC/nova,shahar-stratoscale/nova,usc-isi/nova,devendermishrajio/nova,blueboxgroup/nova,yatinkumbhare/openstack-nova,Brocade-OpenSource/OpenStack-DNRM-Nova,houshengbo/nova_vmware_compute_driver,eharney/nova,double12gzh/nova,JioCloud/nova_test_latest,thomasem/nova,tealover/nova,mahak/nova,zzicewind/nova,DirectXMan12/nova-hacking,eayunstack/nova,vmturbo/nova,qwefi/nova,zhimin711/nova,barnsnake351/nova,tianweizhang/nova,fajoy/nova,jeffrey4l/nova,tangfeixiong/nova,akash1808/nova,rajalokan/nova,viggates/nova,jeffrey4l/nova,watonyweng/nova,dims/nova,devoid/nova,gspilio/nova,OpenAcademy-OpenStack/nova-scheduler,citrix-openstack-build/nova,alexandrucoman/vbox-nova-driver,hanlind/nova,JioCloud/nova,blueboxgroup/nova,kimjaejoong/nova,psiwczak/openstack,yosshy/nova,shootstar/novatest,cloudbau/nova,Triv90/Nova,gooddata/openstack-nova,salv-orlando/MyRepo,russellb/nova,psiwczak/openstack,ruslanloman/nova,NewpTone/stacklab-nova,j-carpentier/nova,tudorvio/nova,rajalokan/nova,gooddata/openstack-nova,CloudServer/nova,iuliat/nova,bgxavier/nova,shail2810/nova,dims/nova,cernops/nova,eonpatapon/nova,maoy/zknova,KarimAllah/nova,SUSE-Cloud/nova,SUSE-Cloud/nova,cloudbase/nova,alvarolopez/nova,yrobla/nova,cloudbase/nova,klmitch/nova,joker946/nova,bigswitch/nova,petrutlucian94/nova_dev,cloudbase/nova-virtualbox,felixma/nova,Yusuke1987/openstack_template,petrutlucian94/nova,akash1808/nova_test_latest,gspilio/nova,NoBodyCam/TftpPxeBootBareMetal,akash1808/nova,hanlind/nova,CiscoSystems/nova,spring-week-topos/nova-week,Triv90/Nova,bgxavier/nova,nikesh-mahalka/nova,alvarolopez/nova,imsplitbit/nova,houshengbo/nova_vmware_compute_driver,ntt-sic/nova,vmturbo/nova,j-carpentier/nova,thomasem/nova,mandeepdhami/nova,sridevikoushik31/nova,sebrandon1/nova,Triv90/Nova,KarimAllah/nova,mahak/nova,apporc/nova,Metaswitch/calico-nova,redhat-openstack/nova,usc-isi/extra-specs,rickerc/nova_audit,plumgrid/plumgrid-nova,Metaswitch/calico-nova,varunarya10/nova_test_latest,BeyondTheClouds/nova,russellb/nova,adelina-t/nova,mgagne/nova,salv-orlando/MyRepo,tanglei528/nova,virtualopensystems/nova,NewpTone/stacklab-nova,rickerc/nova_audit,rahulunair/nova,leilihh/nova,adelina-t/nova,russellb/nova,jianghuaw/nova,josephsuh/extra-specs,viggates/nova,psiwczak/openstack,cloudbase/nova-virtualbox,vladikr/nova_drafts,badock/nova,scripnichenko/nova,alaski/nova,barnsnake351/nova,shail2810/nova,MountainWei/nova,openstack/nova,mandeepdhami/nova,eharney/nova,savi-dev/nova,TieWei/nova,rajalokan/nova,LoHChina/nova,angdraug/nova,bigswitch/nova,edulramirez/nova,TwinkleChawla/nova,NeCTAR-RC/nova,usc-isi/extra-specs,saleemjaveds/https-github.com-openstack-nova,shootstar/novatest,rrader/nova-docker-pl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