* SSD1325 grayscale support implemented
* Linted
* Fix garbage on display at power-up
* Rebase
* Linted
* Add brightness control, CS fixes
* Fix up SSD1327 init
* Add turn_on() and turn_off() methods
* Set brightness later in setup(), logging tweak
* Added is_on() method
* Added grayscale image support
* Updated to use Color, 1327 GS fix