add debugs for state change callbacks in comms tests
add debugs for state change callbacks in comms tests

Change-Id: I9fe034ece06275f5e24aeda8698970a73d9a2e1b
Signed-off-by: Alessandro Salvatori <8a0c874bf01335702b42d6983c4d9b3eb550c634@gmail.com>

mhrobinson/opflex,mhrobinson/opflex,opendaylight/opflex,opendaylight/opflex,opendaylight/opflex,mhrobinson/opflex,opendaylight/opflex,mhrobinson/opflex