Add example directory

[Naturalclar]

This repo should have an example directory so the repo's features can be tested within the repository.

Use microsoft/react-native-test-app to create an example directory to test masked view

[LRNZ09]

@Naturalclar are you working on this? Otherwise, I can take a look at it.

EDIT: one problem I see with using microsoft/react-native-test-app is that it doesn't support the Web platform yet, see microsoft/react-native-test-app#812, maybe Expo could be a more straightforward option.

[Naturalclar]

@LRNZ09 It'll be great if you can take at look at it 👍

EDIT: one problem I see with using microsoft/react-native-test-app is that it doesn't support the Web platform yet, see microsoft/react-native-test-app#812, maybe Expo could be a more straightforward option.

Thanks for the suggestion! However, unfortunately, expo wouldn't be suitable for an example app for a native module library as expo doesn't support adding native modules that are not supported by the framework.
I'm aware that masked-view is one of the libraries that are supported by expo but I'd like to keep the library flexible

As for the web support, masked-view currently doesn't have a web support so it will be fine for now.
I can make a workaround for web example once web support is implemented

[Naturalclar]

Closed via #176