Augments an entity with a physics-driven rigid body. For two bodies, whether a collision can occur is determined as follows: when no body has BodyType Dynamic/DynamicCharacter/Vehicle: not collide; else when both bodies have CollisionGroup equal and not 0: positive CollisionGroup -> collide, negative CollisionGroup -> not collide; else when CollisionCategories and CollisionMask bit-overlaps for both directions: collide; else: not collide