Architectural changes discussed with @schmittner: Moving the FindMyController out of the environment and using the AccessoryController as the main entry point, also for downloading reports
The AccessoryController is now passed as an Environment Object again
* Moving microbit firmware to a subfolder in /Firmware to prepare integration of ESP32
* Add firmware for ESP32 and update workflows
* Integrated ESP32 firmware from @fhessel to OpenHaystack App
Co-authored-by: Frank Hessel <fhessel@seemoo.tu-darmstadt.de>