Mocking LogBox

callstack/react-native-testing-library#658

Author: Doris Tam

MaharaMobile/jest-setup.js

@@ -31,3 +31,5 @@ jest.mock('react-navigation', () => {
     getParam: jest.fn()
   };
 });
+
+jest.mock('react-native/Libraries/LogBox/LogBox');