ref: adding copyright to the vdl files

Change-Id: I5f0f27333528afdcdbb5d353e2d7283588f1e5d9
diff --git a/services/mgmt/repository/repository.vdl b/services/mgmt/repository/repository.vdl
index 445c51e..23827e5 100644
--- a/services/mgmt/repository/repository.vdl
+++ b/services/mgmt/repository/repository.vdl
@@ -1,3 +1,7 @@
+// Copyright 2015 The Vanadium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
 // Package repository contains implementation of the interface for
 // storing and serving various vanadium management objects.
 package repository