[TD] code optimization for DrawViewPart
[TD] code optimization for DrawViewPart

Use same code for GeomHatch and Hatch in DrawViewPart as discussed here: https://forum.freecadweb.org/viewtopic.php?f=35&t=47536&start=10

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