Merge remote-tracking branch 'origin/feature-cellSetRemove' into develop

applications/utilities/mesh/advanced/PDRMesh/PDRMesh.C

...ns/utilities/mesh/advanced/combinePatchFaces/Make/options

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

applications/utilities/mesh/advanced/modifyMesh/Make/options

applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C

...ations/utilities/mesh/advanced/refineHexMesh/Make/options

...ons/utilities/mesh/advanced/refineHexMesh/refineHexMesh.C

...ions/utilities/mesh/advanced/refineWallLayer/Make/options

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

...ications/utilities/mesh/advanced/removeFaces/Make/options

...cations/utilities/mesh/advanced/removeFaces/removeFaces.C

...tilities/mesh/generation/extrude/extrudeMesh/Make/options

...ilities/mesh/generation/extrude/extrudeMesh/extrudeMesh.C

.../mesh/generation/extrude/extrudeToRegionMesh/Make/options

...eration/extrude/extrudeToRegionMesh/extrudeToRegionMesh.C

...ions/utilities/mesh/generation/extrude2DMesh/Make/options

...tilities/mesh/generation/extrude2DMesh/extrude2DMeshApp.C

...ions/utilities/mesh/generation/snappyHexMesh/Make/options

...s/utilities/mesh/generation/snappyHexMesh/snappyHexMesh.C

...ns/utilities/mesh/manipulation/createBaffles/Make/options