Create an RNTL example for TypeScript

[mdjastrzebski]

Describe the Feature

Currently we lack good resource of how to use RNTL with TypeScript. Our current example apps all use JS. Let's create a new example app that will showcase how to properly setup RNTL with TypeScript: minimal setup just for TS, no redux, etc, no fuss. Just the stuff that is required for tests to be written in TS in a way that we consider to be model setup.

Possible Implementations

1. New examples/typescript app.

Related Issues

#920 - when diagnosing this issue I found that we do not have a good resource for TS setup

[AugustinLF]

For whoever, this repo works https://github.com/AugustinLF/repro-rntl

[mdjastrzebski]

Closing as done by #1025. The model example RNTL setup integration incl. TypeScript is now available as examples/basic.