Fixed User constructor for FriendRequest contracts
Adding Blob and Video
Improvements and fixes for .NET SDK
Added some fixes to Blob Video and Sound
Added a Exception message.
Fixing some typos in Video and Videos
Merge remote-tracking branch 'NetSDKGitHub/dev'

Conflicts:
	src/BuddyServiceClient/BuddyServiceClientBase.cs
	src/BuddyServiceClient/BuddyServiceClientHttp.cs