Test: Add cbench test case for igmp join leave loop test.
cbench code was modified as in cbench.patch to add igmp packet in support.
Disable vtn app activation as it is buggy and fails activation.

Change-Id: Ia37ad3d9e6011b970e24bcb9e0a2bb783e334545
diff --git a/src/test/cordSubscriber/cordSubscriberTest.py b/src/test/cordSubscriber/cordSubscriberTest.py
index f4f32d6..d7c3e04 100644
--- a/src/test/cordSubscriber/cordSubscriberTest.py
+++ b/src/test/cordSubscriber/cordSubscriberTest.py
@@ -321,8 +321,8 @@
             log.info('Installing the multi table app %s for subscriber test' %(cls.table_app_file))
             OnosCtrl.install_app(cls.table_app_file)
             time.sleep(3)
-            onos_ctrl = OnosCtrl(cls.vtn_app)
-            onos_ctrl.deactivate()
+            #onos_ctrl = OnosCtrl(cls.vtn_app)
+            #onos_ctrl.deactivate()
 
       @classmethod
       def uninstall_app_table(cls):
@@ -331,8 +331,8 @@
             time.sleep(2)
             log.info('Installing back the cord igmp app %s for subscriber test on exit' %(cls.app_file))
             OnosCtrl.install_app(cls.app_file)
-            onos_ctrl = OnosCtrl(cls.vtn_app)
-            onos_ctrl.activate()
+            #onos_ctrl = OnosCtrl(cls.vtn_app)
+            #onos_ctrl.activate()
 
       @classmethod
       def start_onos(cls, network_cfg = None):