Beta Autopilot System For Me262 2.1

Just a tiny update.
The "Going in a straight way without speed controlling" mode changed to "Maintain heading"
The "Going in a straight way with speed controlling" mode changed to "Maintain heading and speed"
The "speed controlling" mode changed to "Maintain speed"

Thanks to @jakelooker for the suggestion

1. Added Landing mode (still WIP)

2. Changed something in takeoff mode.

3. Now the "Shift + A" key just toggles mode between the 1st and 2nd and 3rd mode:

For using takeoff and landing mode, use their hot keys

4. Added hot keys for modes. (Only the takeoff and landing mode have default key):