VOL-381 add unum container to support ONOS cluster formation under swarm

Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/vendor/github.com/dimiro1/banner/test-banner.txt b/unum/vendor/github.com/dimiro1/banner/test-banner.txt
new file mode 100644
index 0000000..1034bef
--- /dev/null
+++ b/unum/vendor/github.com/dimiro1/banner/test-banner.txt
@@ -0,0 +1 @@
+Test Banner
\ No newline at end of file