Xcode8/iOS10 support

[dtopuzov]

tns build i386 when deploy on simulator, we must build 64-bit architecture in this case.

Current result:
App works, but you see warning in Simulator that this app is not optimized (only first time you start the app).

Notes: When build via Xcode8-Beta there are no issues with architectures.

[jasssonpet]

@dtopuzov What application are you testing with. Does NativeScript/NativeScript#2456 reproduce?
Also, which Xcode 8 beta version are you using?

[dtopuzov]

https://github.com/NativeScript/template-hello-world