[VOL-1386]  This commit add "dep" as the package management tool
for voltha-go.

Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/github.com/hashicorp/serf/website/source/LICENSE b/vendor/github.com/hashicorp/serf/website/source/LICENSE
new file mode 100644
index 0000000..36c29d7
--- /dev/null
+++ b/vendor/github.com/hashicorp/serf/website/source/LICENSE
@@ -0,0 +1,10 @@
+# Proprietary License
+
+This license is temporary while a more official one is drafted. However,
+this should make it clear:
+
+* The text contents of this website are MPL 2.0 licensed.
+
+* The design contents of this website are proprietary and may not be reproduced
+  or reused in any way other than to run the Serf website locally. The license
+  for the design is owned solely by HashiCorp, Inc.