* Update to support zero-size frame items
* Add heartbeat functionality with client reconnecting logic
* Fix connection reauthentication failures preventing future reauthentication
* More logging
* Remove persist
* Update connection logic to have server take on client id rather than having client take on server id during reconnect
* Bump minimum rust version to 1.64.0
* Bump to v0.20.0-alpha.3 and fix clippy warnings
* Update cargo.lock