ENH: updated to use OpenFOAM vtk::vtuAdaptor structure

src/catalyst/CMakeLists-Project.txt

src/catalyst/volMesh/foamVtkFvMeshAdaptor.H

src/catalyst/volMesh/foamVtkFvMeshAdaptorFieldTemplates.C

src/catalyst/volMesh/foamVtkFvMeshAdaptorGeom.C

src/catalyst/volMesh/foamVtkFvMeshAdaptorGeomVtu.C