fix: add babel plugins to support Hermes

[tido64]

Hermes doesn't understand ES6 (yet?) so we need the following babel plugins to support it.

Summary

These plugins, and their options, were lifted from metro-react-native-babel-preset. I'm not 100% whether this is exhaustive (as metro includes a lot more) but it works for us in a fairly large code base.

Test plan

All tests should still pass.

[tido64]

cc @acoates-ms, @thymikee, @zamotany

[zamotany]

@tido64 How about we add those transforms or modify options only when hermes: true flag is passed to Babel preset:

module.exports = {
  presets: ['module:@haul-bundler/babel-preset-react-native', { hermes: true }],
};

making if effectively opt-in?

Enabling those transforms will increate the bundle size by a significant margin, which we wanted to avoid with @haul-bundler/babel-preset-react-native. If we enable them by default, out babel preset will effectively be a clone of metro-react-native-babel-preset, in which case folks can just use Metro's preset.

[zamotany]

Thanks @tido64 for this contribution. I'll do a release today EOD.

[tido64]

@zamotany Thanks for the quick response! <3