ENH: cellShape::reset() - simplifies modification of existing shapes

...tions/utilities/mesh/conversion/ansysToFoam/ansysToFoam.L

...cations/utilities/mesh/conversion/cfx4ToFoam/cfx4ToFoam.C

.../mesh/conversion/fluentMeshToFoam/extrudedQuadCellShape.C

...h/conversion/fluentMeshToFoam/extrudedTriangleCellShape.C

...ons/utilities/mesh/conversion/gambitToFoam/gambitToFoam.L

...cations/utilities/mesh/conversion/gmshToFoam/gmshToFoam.C

...tions/utilities/mesh/conversion/kivaToFoam/readKivaGrid.H

applications/utilities/mesh/conversion/mshToFoam/mshToFoam.C

...mesh/conversion/netgenNeutralToFoam/netgenNeutralToFoam.C

...ons/utilities/mesh/conversion/plot3dToFoam/plot3dToFoam.C

...ons/utilities/mesh/conversion/tetgenToFoam/tetgenToFoam.C

...h/foamyHexMeshBackgroundMesh/foamyHexMeshBackgroundMesh.C

...s/utilities/preProcessing/createBoxTurb/createBlockMesh.H

src/OpenFOAM/meshes/meshShapes/cellMatcher/hexMatcher.C

src/OpenFOAM/meshes/meshShapes/cellMatcher/prismMatcher.C

src/OpenFOAM/meshes/meshShapes/cellMatcher/pyrMatcher.C

src/OpenFOAM/meshes/meshShapes/cellMatcher/tetMatcher.C

src/OpenFOAM/meshes/meshShapes/cellMatcher/tetWedgeMatcher.C

src/OpenFOAM/meshes/meshShapes/cellMatcher/wedgeMatcher.C

src/OpenFOAM/meshes/meshShapes/cellShape/cellShape.H