Removed serveral dead files
Renamed BulletMover to PhysicsController and focused its purpose

Also added is the new BulletShapeCapsule.

PhysicsController is now much more focused and does one thing.
It is used to adjust the forces on a physics rigid body to simulate the moverment,
or you can hard set the movement.
FPSCamera is now a pure event handler

It now just has a reference to a PhysicsController that it sends input to.
FPSCamera as an event handler now translates raw events into more
meaningful events.

Fixed some indentation and removed old commented code in the files
already affected by this commit.