RN: New TouchableHighlight

Summary:
Launches a new implementation of `TouchableHighlight`.

It is implemented using `Pressability` and extends `React.Component`. Notably, `propTypes` no longer exist.

Changelog:
[General] [Changed] - TouchableHighlight overhauled as a class without propTypes.

Reviewed By: TheSavior

Differential Revision: D18715854

fbshipit-source-id: d4ea6ebd2ca9aef2af93ffad2fe75a96424514e5

Author: yungsters