Move Navigator into a dedicated folder

Author: aum-tcm

README.md

@@ -50,6 +50,7 @@ The boilerplate includes an example (displaying fake user data) from UI componen
 - [`App/Config`](App/Config): configuration of the application
 - [`App/Containers`](App/Containers): container components, i.e. the application's screens
 - [`App/Images`](App/Images): images used by the application
+- [`App/Navigators`](App/Navigators): react navigation navigators 
 - [`App/Sagas`](App/Sagas): redux sagas
 - [`App/Services`](App/Services): application services, e.g. API clients
 - [`App/Stores`](App/Stores): redux [actions, reducers and stores](https://redux.js.org/basics)