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

Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/github.com/gogo/protobuf/GOLANG_CONTRIBUTORS b/vendor/github.com/gogo/protobuf/GOLANG_CONTRIBUTORS
new file mode 100644
index 0000000..b368efb
--- /dev/null
+++ b/vendor/github.com/gogo/protobuf/GOLANG_CONTRIBUTORS
@@ -0,0 +1,5 @@
+The contributors to the Go protobuf repository:
+
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at http://tip.golang.org/CONTRIBUTORS.
\ No newline at end of file