* Initial Hyperion camera.
* Improve test coverage.
* Minor state fixes.
* Fix type annotation.
* May rebase and updates (mostly typing).
* Updates to use new camera typing improvements.
* Use new support for returning None from async_get_mjpeg_stream .
* Codereview feedback.
* Lint: Use AsyncGenerator from collections.abc .
* Update homeassistant/components/hyperion/camera.py
Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>
* Add Hyperion device support.
* Update to the new typing annotations.
* Add device cleanup logic.
* Fixes based on the excellent feedback from emontnemery
Dermot Duffy