VTK postprocessing in FEM workbench
Created by: ickby
This branch provides FEM postprocessing based on VTK. The implementation will be revised with availability of the new SMESH, however, the functionality can already be used and later code must only be reorderd. As the SMESH upgrade takes a bit more time this branch can be merged in first, SMESH branch than rebased and adopted. If SMESH is merged first than this branch needs slight adoptions before mreging.