Add option to fill cut shapes with material colors
Add option to fill cut shapes with material colors

Previously when setting the "Show Fill" property of the TechDraw Arch
Section View to true, the areas where always filled with a default grey
color.

This commit adds a property called "UseMaterialColorForFill" to the
ArchSectionPlane. When set to true, it will use the objects material
color to fill the cut shapes and fall back to the default color
when no Material is found.

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