CORD-Support-App: generate JSON blob of devices, hosts, (filtered) links.
- also, update cell simon-single.
- fixed checkstyle (unused import)

Change-Id: I7fc4d601a5f2d79a993fab5a5b664348440a85ea
diff --git a/tools/test/cells/simon-single b/tools/test/cells/simon-single
index f28c714..1011419 100644
--- a/tools/test/cells/simon-single
+++ b/tools/test/cells/simon-single
@@ -4,4 +4,4 @@
 export OC1="192.168.56.1"
 export OCN="192.168.56.99"
 
-export ONOS_APPS="drivers,openflow,fwd,null"
+export ONOS_APPS="drivers,openflow,fwd,null,cord-support"