Introducing optional ability to secure the ONOS karaf shell and to use raw ssh client.

Change-Id: I48cfc922eaf980d1cb8b9182b26999ce3c26b667
diff --git a/tools/test/bin/onos-ssh b/tools/test/bin/onos-ssh
index a7be77a..eb6b88e 100755
--- a/tools/test/bin/onos-ssh
+++ b/tools/test/bin/onos-ssh
@@ -5,6 +5,7 @@
 
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
 . $ONOS_ROOT/tools/build/envDefaults
+. $ONOS_ROOT/tools/test/bin/find-node.sh
 
-[ -n "$1" ] && OCI=$1 && shift
+[ -n "$1" ] && OCI=$(find_node $1) && shift
 ssh -Y $ONOS_USER@$OCI "$@"