dynamic properties:

+ reimplment addDynamicProperty and removeDynamicProperty in TransactionalObject to raise exceptions
+ move addProperty, removeProperty and supportedProperties from ViewProviderPythonFeaturePy to ViewProviderPy

src/Gui/ViewProviderPythonFeaturePyImp.cpp

@@ -39,62 +39,6 @@ std::string ViewProviderPythonFeaturePy::representation(void) const
     return "<ViewProviderPythonFeature object>";
 }
 
-PyObject*  ViewProviderPythonFeaturePy::addProperty(PyObject *args)
-{
-    char *sType,*sName=0,*sGroup=0,*sDoc=0;
-    short attr=0;
-    std::string sDocStr;
-    PyObject *ro = Py_False, *hd = Py_False;
-    if (!PyArg_ParseTuple(args, "s|ssethO!O!", &sType,&sName,&sGroup,"utf-8",&sDoc,&attr,
-        &PyBool_Type, &ro, &PyBool_Type, &hd))     // convert args: Python->C
-        return NULL;                             // NULL triggers exception 
-
-    if (sDoc) {
-        sDocStr = sDoc;
-        PyMem_Free(sDoc);
-    }
-
-    App::Property* prop=0;
-    prop = getViewProviderPythonFeaturePtr()->addDynamicProperty(sType,sName,sGroup,sDocStr.c_str(),attr,
-        PyObject_IsTrue(ro) ? true : false, PyObject_IsTrue(hd) ? true : false);
-    
-    if (!prop) {
-        std::stringstream str;
-        str << "No property found of type '" << sType << "'" << std::ends;
-        throw Py::Exception(Base::BaseExceptionFreeCADError,str.str());
-    }
-
-    return Py::new_reference_to(this);
-}
-
-PyObject*  ViewProviderPythonFeaturePy::removeProperty(PyObject *args)
-{
-    char *sName;
-    if (!PyArg_ParseTuple(args, "s", &sName))
-        return NULL;
-
-    bool ok = getViewProviderPythonFeaturePtr()->removeDynamicProperty(sName);
-    return Py_BuildValue("O", (ok ? Py_True : Py_False));
-}
-
-PyObject*  ViewProviderPythonFeaturePy::supportedProperties(PyObject *args)
-{
-    if (!PyArg_ParseTuple(args, ""))     // convert args: Python->C 
-        return NULL;                    // NULL triggers exception
-    
-    std::vector<Base::Type> ary;
-    Base::Type::getAllDerivedFrom(App::Property::getClassTypeId(), ary);
-    Py::List res;
-    for (std::vector<Base::Type>::iterator it = ary.begin(); it != ary.end(); ++it) {
-        Base::BaseClass *data = static_cast<Base::BaseClass*>(it->createInstance());
-        if (data) {
-            delete data;
-            res.append(Py::String(it->getName()));
-        }
-    }
-    return Py::new_reference_to(res);
-}
-
 PyObject *ViewProviderPythonFeaturePy::getCustomAttributes(const char* attr) const
 {
     PY_TRY{