Fixed ImportPublishSettingsFile method in publishSettings.go

Fixed ImportPublishSettingsFile method in publishSettings.go
Moved NewUUID() to common.go

Moved NewUUID() to common.go
Added GetRoleSizeList and ResolveRoleSize methods

Added GetRoleSizeList and ResolveRoleSize methods
to vmClient.go
Delete hosted service if VM deployment failed

Delete hosted service if VM deployment failed