Android Branch: Start working toward unified iOS and Android

[paintedbicycle]

This commit:

• bring all changes from master into branch
• updates Android dependencies
• updates iOS and Android example apps
• properly links RNUnifiedContacts into the android example app
• moves Android to the com.joshuapinter.RNUnifiedContacts naming format for the module name as to not clash with any other com.joshuapinter modules in the future
• temporarily comments out the JS-based permissions used on Android that were not available to iOS

I have confirmed that both iOS and Android Example apps can load using this PR. I want to use it as a jumping off point to unify iOS and Android.

The iOS example app works as before. The Android app currently loads, but permission methods do not yet work (commented out).

[joshuapinter]

👏 Awesome. I've made you a collaborator, which should allow you to more easily update the Android branch.

[paintedbicycle]

@joshuapinter Ok nice, thanks!