[CORD-2045] move files from 3.0 to 4.1; include copyright

Change-Id: Ie9675d198be1b36aea818935b8f264e7f5da7ffa
(cherry picked from commit 786c4c5b11171289cbfbb6f5b12586840aef206b)
diff --git a/xos/synchronizer/vhss-synchronizer.py b/xos/synchronizer/vhss-synchronizer.py
new file mode 100755
index 0000000..bae8953
--- /dev/null
+++ b/xos/synchronizer/vhss-synchronizer.py
@@ -0,0 +1,28 @@
+# 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
+
+# Runs the standard XOS synchronizer
+
+import importlib
+import os
+import sys
+
+synchronizer_path = os.path.join(os.path.dirname(
+    os.path.realpath(__file__)), "../../synchronizers/new_base")
+sys.path.append(synchronizer_path)
+mod = importlib.import_module("xos-synchronizer")
+mod.main()
+