Implemented Dropoff points

Signed-off-by: fad4470 <fad4470@rit.edu>
Implemented DropOff points and added restart button (mapped to R key)

Signed-off-by: fad4470 <fad4470@rit.edu>
Implemented damage based on individual tires.
Still needs some value tweeking.

Signed-off-by: fad4470 <fad4470@rit.edu>
Merge branch 'master' of https://github.com/fad4470/GDD-Racer