ENH: support usage descriptions for command arguments

...ities/mesh/advanced/combinePatchFaces/combinePatchFaces.C

...utilities/mesh/advanced/refineWallLayer/refineWallLayer.C

applications/utilities/mesh/advanced/splitCells/splitCells.C

...tions/utilities/mesh/conversion/ccm/ccmToFoam/ccmToFoam.C

...cations/utilities/mesh/conversion/fireToFoam/fireToFoam.C

...s/utilities/mesh/conversion/foamToSurface/foamToSurface.C

...tions/utilities/mesh/conversion/star4ToFoam/star4ToFoam.C

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

.../conversion/vtkUnstructuredToFoam/vtkUnstructuredToFoam.C

...foamyHexMeshSurfaceSimplify/foamyHexMeshSurfaceSimplify.C

...hSurfaceSimplify/foamyHexMeshSurfaceSimplify_non_octree.C

...cations/utilities/mesh/manipulation/autoPatch/autoPatch.C

...s/utilities/mesh/manipulation/deformedGeom/deformedGeom.C

applications/utilities/mesh/manipulation/objToVTK/objToVTK.C

...ilities/mesh/manipulation/orientFaceZone/orientFaceZone.C

...tilities/mesh/manipulation/polyDualMesh/polyDualMeshApp.C

...tions/utilities/mesh/manipulation/rotateMesh/rotateMesh.C

...cations/utilities/mesh/manipulation/splitMesh/splitMesh.C

...tions/utilities/mesh/manipulation/stitchMesh/stitchMesh.C

...s/utilities/miscellaneous/foamDictionary/foamDictionary.C