dynamics → include Relation

File in src/dynamics	Includes file in include
DynamicsWorld.cpp	collision / CollisionBody.hpp
DynamicsWorld.cpp	dynamics / DynamicsWorld.hpp
Rigidbody.cpp	dynamics / Rigidbody.hpp
Solver.cpp	collision / Collision.hpp
Solver.cpp	dynamics / Rigidbody.hpp
Solver.cpp	dynamics / Solver.hpp