Base: Rename Base::freecad_dynamic_cast into freecad_cast

This is to make it shorter and easier to use. QT does the same thing
with their qobject_cast.

src/Mod/PartDesign/App/ShapeBinder.cpp

@@ -718,7 +718,7 @@ void SubShapeBinder::update(SubShapeBinder::UpdateOption options) {
         if (!forced) {
             bool hit = true;
             for (auto& v : mats) {
-                auto prop = Base::freecad_dynamic_cast<App::PropertyMatrix>(
+                auto prop = freecad_cast<App::PropertyMatrix>(
                     getDynamicPropertyByName(cacheName(v.first)));
                 if (!prop || prop->getValue() != v.second) {
                     hit = false;