Collision, Animation updates

- send 10 rays from the sides to detect collisions
- send 3 from bottom
- Added an animator controller
- Modified input settings, we have now walk and run, hold shift to run
- Animation: added a blend tree to the animator controller.
- added three motion fields to the blend tree for now, one for walk,
and other for run and last for idle.
- modified the player controller class to get the animator component
and set the speed threshold