Added a mock virConnect class
Added a mock virConnect class

in this I took all the functions defined on a libvirt.virConnect
class and added them to the class as a stub function.

the stub function will take any number of arguments and return 0

making creation and API calls super fast ;) for testing purposes
and we can add correct Mocking behavior later.

Closes #799

vongazman/libcloud,StackPointCloud/libcloud,ByteInternet/libcloud,apache/libcloud,mistio/libcloud,DimensionDataCBUSydney/libcloud,NexusIS/libcloud,DimensionDataCBUSydney/libcloud,mgogoulos/libcloud,NexusIS/libcloud,ByteInternet/libcloud,Kami/libcloud,ZuluPro/libcloud,techhat/libcloud,Scalr/libcloud,iPlantCollaborativeOpenSource/libcloud,samuelchong/libcloud,mistio/libcloud,ZuluPro/libcloud,vongazman/libcloud,ZuluPro/libcloud,StackPointCloud/libcloud,illfelder/libcloud,mgogoulos/libcloud,watermelo/libcloud,erjohnso/libcloud,mgogoulos/libcloud,wuyuewen/libcloud,watermelo/libcloud,StackPointCloud/libcloud,SecurityCompass/libcloud,andrewsomething/libcloud,erjohnso/libcloud,andrewsomething/libcloud,erjohnso/libcloud,t-tran/libcloud,pquentin/libcloud,mistio/libcloud,iPlantCollaborativeOpenSource/libcloud,techhat/libcloud,ByteInternet/libcloud,DimensionDataCBUSydney/libcloud,wuyuewen/libcloud,lochiiconnectivity/libcloud,watermelo/libcloud,pquentin/libcloud,NexusIS/libcloud,samuelchong/libcloud,illfelder/libcloud,apache/libcloud,Kami/libcloud,andrewsomething/libcloud,illfelder/libcloud,samuelchong/libcloud,t-tran/libcloud,lochiiconnectivity/libcloud,apache/libcloud,Scalr/libcloud,vongazman/libcloud,Kami/libcloud,wuyuewen/libcloud,techhat/libcloud,Scalr/libcloud,pquentin/libcloud,t-tran/libcloud,iPlantCollaborativeOpenSource/libcloud,SecurityCompass/libcloud,SecurityCompass/libcloud,lochiiconnectivity/libcloud