Moving metro-net to vnaas and porting to 4.0

Change-Id: Id42bb247033087e5d28bcbab9db07d58e6364625
diff --git a/xos/synchronizer/vnaas-synchronizer.py b/xos/synchronizer/vnaas-synchronizer.py
new file mode 100755
index 0000000..4ced1aa
--- /dev/null
+++ b/xos/synchronizer/vnaas-synchronizer.py
@@ -0,0 +1,32 @@
+
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+#!/usr/bin/env python
+
+# This imports and runs ../../xos-observer.py
+
+import importlib
+import os
+import sys
+from xosconfig import Config
+
+config_file = os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + '/vnaas_config.yaml')
+Config.init(config_file, 'synchronizer-config-schema.yaml')
+
+observer_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../../synchronizers/new_base")
+sys.path.append(observer_path)
+mod = importlib.import_module("xos-synchronizer")
+mod.main()