Redwood setup command args parsing POC

Target args shape:

yarn rw setup --global-flag +scope:value --scoped-flag +scope --scoped-arg=value +scope --scoped-arg value

For example:

yarn rw setup --force +deploy:netlify --migrate-data +auth:supabase +tailwind --ui --version 2 +i18n --lang=en,fr

However yargs, which is used internally for the setup command, is not directly configurable to work with this format.
This PoC demonstrates how we can transform the argv array before it's parsed by yargs to leverage the dotted notation that yargs supports, so that we can provide a nice DevX to both Redwood's users and internal devs.

The above example is transformed to:

--force --deploy=netlify --deploy.migrate-data --auth=supabase --tailwind.ui --tailwind.version=2 --i18n.lang=en,fr

Which, once parsed by yargs, makes this argv object available to the command:

{
  force: true,
  deploy: [ 'netlify', { 'migrate-data': true }, { migrateData: true } ],
  auth: 'supabase',
  tailwind: { ui: true, version: 2 },
  i18n: { lang: 'en,fr' },
}