Adding an STC scenario to test basic HA functionality

Change-Id: Ic70b592bf932dcdcd4eb88606d0b0aa9ef9c4a59
diff --git a/tools/dev/bash_profile b/tools/dev/bash_profile
index 79f80f2..a288765 100644
--- a/tools/dev/bash_profile
+++ b/tools/dev/bash_profile
@@ -105,6 +105,10 @@
 alias sshctl='onos-ssh'
 alias sshnet='onos-ssh $OCN'
 
+# Runs a sequence of STC scenarios until the first failure.
+function stcs {
+    for s in "$@"; do stc $s || return 1; done
+}
 
 # Applies the settings in the specified topology recipe file or lists current
 # topo recipe definition if no topo recipe file is given.