Submit plugin to WordPress.org

[ChrisWiegman]

As WP GraphQL moves to a model where they're more comfortable with extension plugins, like this one, it is time we add it to WordPress.org to make it easier for users and developers to access.

Acceptance Criteria

• [ ] Prepare a plugin version for WordPress.org submission (may require removing update code)
• [ ] Submit to .org
• [ ] Setup CI/CD for automatic deployment when the project is accepted
• [ ] Push a new release to .org when we're ready

Notes

• Watch the slug. We don't want to change that
• After it's on .org we'll add it's download count to our own metrics