quality → core Relation

File in src/engine/2d/quality	Includes file in src/engine/core
SurfaceQuality2D.cpp	DateTime.hpp
SurfaceQuality2D.cpp	PolygonRings.hpp
SurfaceQuality2D.cpp	ProcessPerf.hpp
SurfaceQuality2D.cpp	SimulationContext.hpp
SurfaceQuality2D.cpp	UnitConversion.hpp