+ Added collision data for the entities.
+ Added controls for the player paddle.
+ Added a SetData method to update an entity's record in the component.
! Renamed ids.
+ Added the ClearCollisions method to do away with the collisions found after we're done with them for the frame.
+ Added code to actually detect when we have a collision.
- Changed the const reference to the collision detection component to a reference, so we can clear it after we're done.
+ Added a simple resolution method which inverts the horizontal speeds (always 0 on the paddles).