* add u8g2 and ui libs
* add display driver and usage example
* not init display in test mode
* change todo text
* fix removed code
* add ioc for flipperzero f2
* add generated f1 files to f2
* regenerate cubemx
* invert initial state of led
* blink backligh
* shutdown backlight on idle
* more rave!
* add todo
