Update Google SignIn.Framewaret to version 6.1.0

Job ID: 33531702

Budget: $15 – $25 USD

Update Google SignIn.Framewaret to version 6.1.0

- GoogleSignIn.h
- GoogleSignIn.mm
- GoogleSignInAppController.h,
- GoogleSignInAppController.mm

Timeline need to finish in 5hrs

Related categories: Unity 3D