- OpenFOAM reader:
     (vtkPVFoam, PVFoamReader_SM)
  => (vtkPVFoamReader, ParaFoamReader)

- blockMesh reader:
     (vtkPVblockMesh, PVblockMeshReader_SM)
  => (vtkPVblockReader, ParaFoamBlockReader)

* provides better correspondence between library and module names