add python binding of OCC defeaturing

src/Mod/Part/App/TopoShapePyImp.cpp

@@ -2650,6 +2650,33 @@ PyObject* TopoShapePy::optimalBoundingBox(PyObject *args)
     }
 }
 
+PyObject* TopoShapePy::defeaturing(PyObject *args)
+{
+    PyObject *l;
+    if (!PyArg_ParseTuple(args, "O",&l))
+        return NULL;
+
+    try {
+        Py::Sequence list(l);
+        std::vector<TopoDS_Shape> shapes;
+        for (Py::Sequence::iterator it = list.begin(); it != list.end(); ++it) {
+            Py::TopoShape sh(*it);
+            shapes.push_back(
+                sh.extensionObject()->getTopoShapePtr()->getShape()
+            );
+        }
+        PyTypeObject* type = this->GetType();
+        PyObject* inst = type->tp_new(type, this, 0);
+        static_cast<TopoShapePy*>(inst)->getTopoShapePtr()->setShape
+            (this->getTopoShapePtr()->defeaturing(shapes));
+        return inst;
+    }
+    catch (const Standard_Failure& e) {
+        PyErr_SetString(PartExceptionOCCError, e.GetMessageString());
+        return NULL;
+    }
+}
+
 // End of Methods, Start of Attributes
 
 #if 0 // see ComplexGeoDataPy::Matrix which does the same