ENH: consolidate surfaceFormats for reading/writing triSurface (issue #294)

...cations/utilities/surface/surfaceConvert/surfaceConvert.C

...utilities/surface/surfaceMeshConvert/surfaceMeshConvert.C

...FOAM/meshes/primitiveMesh/PrimitivePatch/PrimitivePatch.H

src/OpenFOAM/primitives/strings/stringOps/stringOps.H

...penFOAM/primitives/strings/stringOps/stringOpsTemplates.C

src/fileFormats/fire/FIRECore.C

src/fileFormats/fire/FIRECore.H

src/fileFormats/nas/NASCore.C

src/fileFormats/nas/NASCore.H

src/fileFormats/starcd/STARCDCore.C

src/fileFormats/starcd/STARCDCore.H

src/fileFormats/stl/STLCore.C

src/fileFormats/stl/STLCore.H

src/fileFormats/stl/STLReader.C

src/fileFormats/stl/STLReader.H

src/fileFormats/stl/STLReaderASCII.L

src/lumpedPointMotion/lumpedPointState.C

src/meshTools/edgeMesh/edgeMeshFormats/edgeMeshFormatsCore.C

src/meshTools/edgeMesh/edgeMeshFormats/edgeMeshFormatsCore.H

src/meshTools/edgeMesh/edgeMeshFormats/nas/NASedgeFormat.C