Updated movement physics even further, added off-axis thrust, added induced drag when close to destination point.

Added hooks for other mod(s) to use.

Updated to have a bit less thrust, a bit more turning, and just a teensy bit less drag.

This should mean in-system movement is less crazily fast while maintaining all the other benefits of the mod.

Updated with preliminary balancing, should now be actually fun for people to play with. Let me know how it goes!