AABBTree now stores rotation as well
Add the ability to get Colliders from SImplePhysics
AABBTree now returns the number of in collision nodes

CollisionCheck() now returns the number of nodes in collision with the
object.

Call GetCollisionPoint() to get the position and normal of the
collision.
Fixed AABBTree::GetCollisionPoint

It now returns a CollisionPoint or nullptr.
AABBTree populate now precomputes rotation