* Menu: secondary menu rendering
* Manu: reset window position on enter to new menu
* App-loader: settings menu
* Applications: add settings app list
* App backlight-control: all work related to turning off the display is now in the notification app
* App notification: settings save and load
* Gui: variable item list module
* App: new notification settings app
* Display: backlight is now fully serviced in the notification app
* Gui: update variable item list module documentation
* Add saving to SD-Card (not ready yet)
* Add saving to SD-card (done)
* Select previous menu item
* Fix central button
* Fix current_button
* Refactoring
* Add notifications
* [FL-1417] Add IRDA CLI
CLI commands:
1) ir_rx
Receives all IR-trafic, decodes and prints result to stdout
2) ir_tx <protocol> <address> <command>
Transmits IR-signal. Address and command are hex-formatted
* Fix BUG with random memory corruption at random time in random place in random universe in random unknown space and time forever amen
* Fix submenu set_selected_item
* Bring protocol order back
* Add TODO sdcard check