expo-local-authentication module (#3102)
expo-local-authentication module (#3102)

* [sdk][ios][android][xdl][shipit] expo-local-authentication module

* fix local authentication module on Android

* [ios] fix warning message being nil in NSDictionary

fbshipit-source-id: 8397a8e

exponentjs/xdl,exponentjs/xdl,exponentjs/xdl