Request WeChat login integration

WeChat(微信) is the most important social network in China, and there are 1 billion monthly active users on it. Nearly every Chinese mobile game integrates WeChat login.

So it would be great if PlayFab supports WeChat login by default, and it would definitely encourage more Chinese developers to use PlayFab.

At present, I'll try Generic ID API to work with WeChat.

Anyone also want Wechat integration, please vote on this request, thank you.