* Adding a new OLED extension and updated kyria code to use it.
* Fixed some basic errors and improved performance of extension.
* Add support for changing LED brightness.
* Add support for changing OLED brightness.
* Update oled.py
* Small bugfix
* Take busio.I2C object as Oled parameter
* Add a missing statement into deinit
* Optionally initialize I2C inside the extension
* Implement suggested changes
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Co-authored-by: Jan Lindblom <janlindblom@fastmail.fm>
