Adding project level license

Change-Id: I6c725673b5683218f69aeb704c1eb3c43cfeaef5
diff --git a/VERSION.license b/VERSION.license
new file mode 100644
index 0000000..beaba56
--- /dev/null
+++ b/VERSION.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2022 Open Networking Foundation <info@opennetworking.org>
+
+SPDX-License-Identifier: Apache-2.0