Summary:
Migrating DrawerLayoutAndroid component to use ES6 import
Slowly migrate each file to use es6 import/exports to make this discussion happen
react-native-community/discussions-and-proposals#201 (comment)
## Changelog
[General] [Changed] - Use ES6 import/export syntax for DrawerLayoutAndroid component
Pull Request resolved: https://github.com/facebook/react-native/pull/29639
Test Plan: Manual RNTester for Android
Reviewed By: TheSavior
Differential Revision: D23110137
Pulled By: mdvacca
fbshipit-source-id: a43b4f3981335c9f532185cec8957e46f35aac7b