[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/ops-misc/debian/copyright b/vendor/github.com/hashicorp/serf/ops-misc/debian/copyright
new file mode 100644
index 0000000..21a1a1b
--- /dev/null
+++ b/vendor/github.com/hashicorp/serf/ops-misc/debian/copyright
@@ -0,0 +1,2 @@
+Name: serf
+Copyright: Hashicorp 2013