Update featuring the Joystick and RC mapping settings.
[FEATURE] Joystick Calibration basic functionality implemented. Can select a device and set up custom axis bindings.
Several bugfix and improvements:
[BUG] Fixed bug where the mouse cursor would be missing in the Main menu after quitting from In-Game Menu or restarting from Results Screen.
[BUG] FC settings panel: the rate curves only draw the relevant functions.
[BUG] New players starting a "Quick Race" will have their first fly on an easy track.
[BUG] UI popups now correctly receive the focus when being displayed
[UI] Several UI visual improvements