Using the library causes a warning when the application is launched on Android

[wieckowskimateusz]

Hey. On launch app we getting errors:

1. new NativeEventEmitter() was called with a non-null argument without the required addListener method.
2. new NativeEventEmitter() was called with a non-null argument without the required removeListeners method.

Tested on: "react-native": "0.72.6"

Adding bellow methods to RNLaunchNavigatorModule.java resolves the problem:

     @ReactMethod
     public void addListener(String eventName) {}

     @ReactMethod
     public void removeListeners(Integer count) {}