esthetic modifications

Mesh/BGMBase.cpp

Mesh/BGMBase.h

Mesh/BackgroundMesh2D.cpp

Mesh/BackgroundMesh2D.h

Mesh/BackgroundMesh3D.cpp

Mesh/BackgroundMesh3D.h

Mesh/BackgroundMeshManager.cpp

Mesh/BackgroundMeshTools.cpp

Mesh/BackgroundMeshTools.h

Mesh/Field.cpp

Mesh/pointInsertion.cpp

Mesh/pointInsertion.h

Mesh/pointInsertionRTreeTools.cpp

Mesh/pointInsertionRTreeTools.h

Mesh/surfaceFiller.cpp

Mesh/yamakawa.cpp

Mesh/yamakawa.h