FEM: z88 mesh, some changes: - add a much simpler method to write a FemMesh to Z88 file format by Python - add a read method which does not create a document object but just returns the FemMesh
FEM: z88 mesh, some changes:
- add a much simpler method to write a FemMesh to Z88 file format by Python
- add a read method which does not create a document object but just returns the FemMesh

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master