New template-based set.
Changes:
	modified:   Set.cpp
	modified:   Set.h
Binary relation class added.
Bin relation cpp file added.
Significant changes:
	deleted:    BinRelation.cpp
	modified:   BinRelation.h
	new file:   LatticeVisualizer.cpp
	new file:   Makefile
	new file:   Poset.h
	renamed:    Set.cpp -> Set.h
	new file:   test.lat
Changes:
	added:      LatticeNode.h
	modified:   LatticeVisualizer.cpp
Changes:
	new file:   ColorRGB.h
	modified:   LatticeNode.h
	modified:   LatticeVisualizer.cpp
	modified:   Makefile
	modified:   Poset.h
	modified:   Set.h
	new file:   Window.h
	new file:   types.h
	new file:   utilities.h
Changes:
	modified:   BinRelation.h
	modified:   LatticeNode.h
	modified:   LatticeVisualizer.cpp
	modified:   Poset.h
	modified:   utilities.h