Add function getting node unique name. (#993)

python/pyngraph/node.cpp

@@ -68,6 +68,7 @@ void regclass_pyngraph_Node(py::module m)
     node.def("get_output_shape", &ngraph::Node::get_output_shape);
     node.def("get_shape", &ngraph::Node::get_shape);
     node.def("get_argument", &ngraph::Node::get_argument);
+    node.def("get_unique_name", &ngraph::Node::get_name);
 
     node.def_property("name", &ngraph::Node::get_friendly_name, &ngraph::Node::set_name);
     node.def_property_readonly("shape", &ngraph::Node::get_shape);