obs-scripting: Add obs_sceneitem_group_enum_items function call

Adds function call to enumerate over items contained in a source group.

deps/obs-scripting/obs-scripting-python.c

@@ -1108,6 +1108,23 @@ static PyObject *scene_enum_items(PyObject *self, PyObject *args)
 	return list;
 }
 
+static PyObject *sceneitem_group_enum_items(PyObject *self, PyObject *args)
+{
+	PyObject *py_sceneitem;
+	obs_sceneitem_t *sceneitem;
+
+	UNUSED_PARAMETER(self);
+
+	if (!parse_args(args, "O", &py_sceneitem))
+		return python_none();
+	if (!py_to_libobs(obs_sceneitem_t, py_sceneitem, &sceneitem))
+		return python_none();
+
+	PyObject *list = PyList_New(0);
+	obs_sceneitem_group_enum_items(sceneitem, enum_items_proc, list);
+	return list;
+}
+
 /* -------------------------------------------- */
 
 static PyObject *source_list_release(PyObject *self, PyObject *args)
@@ -1235,6 +1252,8 @@ static void add_hook_functions(PyObject *module)
 		DEF_FUNC("sceneitem_list_release", sceneitem_list_release),
 		DEF_FUNC("obs_enum_sources", enum_sources),
 		DEF_FUNC("obs_scene_enum_items", scene_enum_items),
+		DEF_FUNC("obs_sceneitem_group_enum_items",
+			 sceneitem_group_enum_items),
 		DEF_FUNC("obs_remove_tick_callback",
 			 obs_python_remove_tick_callback),
 		DEF_FUNC("obs_add_tick_callback", obs_python_add_tick_callback),