PartDesign changes

* Mostly for supporting in-place editing

* Add new SubShapeBinder that support cross coordinate system,
  external, and sub-object binding

src/Mod/PartDesign/Gui/AppPartDesignGui.cpp

@@ -150,6 +150,7 @@ PyMOD_INIT_FUNC(PartDesignGui)
     PartDesignGui::ViewProviderDatumPlane    ::init();
     PartDesignGui::ViewProviderDatumCoordinateSystem::init();
     PartDesignGui::ViewProviderShapeBinder   ::init();
+    PartDesignGui::ViewProviderSubShapeBinder::init();
     PartDesignGui::ViewProviderBoolean       ::init();
     PartDesignGui::ViewProviderAddSub        ::init();
     PartDesignGui::ViewProviderPrimitive     ::init();