Draft: Snap to BuildingPart base points

src/Mod/Draft/DraftSnap.py

@@ -303,7 +303,10 @@ class Snapper:
                     if Draft.getType(obj) == "Polygon":
                         # special snapping for polygons: add the center
                         snaps.extend(self.snapToPolygon(obj))
-                        
+                    elif Draft.getType(obj) == "BuildingPart":
+                        # special snapping for Arch building parts: add the location
+                        snaps.append([obj.Placement.Base,'endpoint',self.toWP(obj.Pacement.Base)])
+
                     if (not self.maxEdges) or (len(shape.Edges) <= self.maxEdges):
                         if "Edge" in comp:
                             # we are snapping to an edge