* Add class helper ChatAction
* Change using helper to using enum.Enum
* Add test for class ChatAction
* Use black formatting
* Add pull request description to CHANGES
* Add test coverage
* Use AutoName class for enum values
* Move `AutoName` to separate file
* Move inheritance from `str`
* Fix failing mypy
* Delete old actions
Co-authored-by: Evgen Fil <evgfilim1@yandex.ru>
