CollisionPoint now stores a scaled normal vector

When checking for collisions AABBTree now computes a scaled normal for
the collision point.
Added a memory leak fix for colliders in SimplePhysics
Actual commit for CollisionPoint fixes.
Moved starting view location
ViewMover can now remove a normal force from the total force

When ViewMover applies it's forces it will now remove normal forces.
This allows collision response.
SimplePhysics:::Update now does collision detection and response