[ONOS-7600] Supporting debug mode in onos.py
[ONOS-7600] Supporting debug mode in onos.py

Change-Id: I388114bfd2419181cca6e137a9cc9b84c62c90de

gkatsikas/onos,oplinkoms/onos,gkatsikas/onos,gkatsikas/onos,opennetworkinglab/onos,gkatsikas/onos,kuujo/onos,opennetworkinglab/onos,oplinkoms/onos,gkatsikas/onos,kuujo/onos,kuujo/onos,kuujo/onos,opennetworkinglab/onos,oplinkoms/onos,kuujo/onos,oplinkoms/onos,oplinkoms/onos,kuujo/onos,oplinkoms/onos,opennetworkinglab/onos,kuujo/onos,gkatsikas/onos,opennetworkinglab/onos,opennetworkinglab/onos,oplinkoms/onos