Support for config flow, update cordinators, asyncio, and more!

This is a major rewrite of this integration to allow it to be added via the UI, optimize API calls via an update coordinator, and generally bring it into compliance with modern Home Assistant standards. Existing configuration.yaml setups should be seamlessly integrated, and can be safely removed after the initial start.

A major thank you to everyone who has helped this project by sponsoring it, debugging this update, providing feedback, and using it! This integration and API have come a long way in the last year, and wouldn't have been possible without the support I've received from the community.