motion → physics Relation

File in src/object/motion	Includes file in src/physics
motionant.cpp	physics.h
motionbee.cpp	physics.h
motiondummy.cpp	physics.h
motionhuman.cpp	physics.h
motionmother.cpp	physics.h
motionspider.cpp	physics.h
motionvehicle.cpp	physics.h
motionworm.cpp	physics.h