Added checkTopology and use of CompoundFace+metis

Fltk/classificationEditor.cpp

Fltk/classificationEditor.h

Geo/GEdgeCompound.cpp

Geo/GFace.h

Geo/GFaceCompound.cpp

Geo/GFaceCompound.h

Geo/GModel.cpp

Geo/GModel.h

Geo/OCCFace.h

Geo/discreteEdge.cpp

Geo/discreteFace.cpp

Geo/discreteFace.h

Geo/gmshFace.h

Mesh/Generator.cpp

Mesh/meshGFace.cpp

Mesh/meshPartition.cpp

Mesh/meshPartition.h

Mesh/meshPartitionObjects.h

Solver/convexCombinationTerm.h

Solver/helmholtzTerm.h