ref: adding copyright headers and licensing files

Change-Id: I135f73159c3e010f7faf14f1215bbd74eb32c2cb
diff --git a/test/doc.go b/test/doc.go
index 82b585d..f0fbcdb 100644
--- a/test/doc.go
+++ b/test/doc.go
@@ -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 test provides initalization for unit and integration tests.
 //
 // Init configures logging, random number generators and other global state.