ENH: parallel and xml output for vtk topoSet writers (issue #926)

applications/utilities/mesh/manipulation/setSet/setSet.C

...ities/postProcessing/dataConversion/foamToVTK/foamToVTK.C

src/meshTools/Make/files

src/meshTools/output/foamVtkIndPatchWriter.C

src/meshTools/output/foamVtkIndPatchWriter.H

src/meshTools/output/foamVtkIndPatchWriterTemplates.C

src/meshTools/output/foamVtkWriteCellSetFaces.C

src/meshTools/output/foamVtkWriteFaceSet.C

src/meshTools/output/foamVtkWritePointSet.C

src/meshTools/output/foamVtkWriteTopoSet.C

src/meshTools/output/foamVtkWriteTopoSet.H