Tweak: create pot file with WP CLI and move translations to JS files

[ravinderk]

Description of the Change

I create a bash script that uses package.json --> files to create a pot file for the addon. I implemented EnqueueScript, which manages script dependencies and versions based on the asset file generated by @wordpress/dependency-extraction-webpack-plugin package.

Closes #947 #267 #660

How to test the Change

• Run npm run makepot command. It should generate a translation file that contains translations from a javascript file (only in dist/js directory).
• Each script and style file should load correctly, which their versions and dependencies mentioned in the assets file.
• Each feature depends upon javascript and should work as expected.
• You should be able to edit translatable strings in Javascript or PHP files. You can use Loco translate plugin for testing.

  Action	Screenshot
  Edit string
  View edited string
  Translation files in plugin directory

Changelog Entry

Added - Generate POT file with WP-CLI.
Added - Register scripts with EnqueueScript class.

Notable Changes

• Rename ./tests/php/bootstrap.php.dist --> ./tests/php/bootstrap.php to get code editor support.

Todo before release

• Ensure WP CLI exists in the built environment before generating the pot file.

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.

[peterwilsoncc]

@ravinderk FYI, I've pushed in develop after merging #1022 -- I figured I'd do it as I knew it would create merge conflicts that would need to be resolved.

[peterwilsoncc]

Thanks @ravinderk, this looks good to me.