Updated to Indev 0.1.1

Change log:
-Calculates acceleration and friction according to direction
-Added mass, momentum (X/Y) and Fnet (X/Y) to Ball Object
-Added calculations for momentum and Fnet (X/Y)
-Added momentum and Fnet (X/Y) to debug screen
-Changed font size of debug screen

Note: This update is mainly for updating the math for collisions, in
order to utilize the momentum and force of the balls.
Revert "Updated to Indev 0.1.1"

This reverts commit df2adf5491a8f85c48a251d3e1a86985851b6520.