Added gamepad button support through the input architecture.
Updated the grid visual and respective cursor updates. This fixes the skewed grid look. Will need to make sure this doesn't push through any bugs right now, and needs to be redone in the future.
No longer handling switches for button states in JugglerGamepadInput class. This is handled by juggler, and is thus much more safe that way.
Updating color scheme. Grid is now black instead of red, and cursor is green.