Add React Native requirement and make things optional
Add React Native requirement and make things optional

stephenotalora/StopWatch,stephenotalora/StopWatch,stephenotalora/NativeApp,jhabdas/react-native-webpack-starter-kit,Overload119/RapPad-Mobile-React-Native,water-alchemists/drops,jhabdas/react-native-webpack-starter-kit,amarcher/dooler,stephenotalora/NativeApp,amarcher/dooler,Overload119/RapPad-Mobile-React-Native,water-alchemists/drops