Add some new actions and corresponding events about ConfBridge

[brenard]

Hi,

I implement some new actions and corresponding events about ConfBridge :

• ConfbridgeListRooms action and it's ConfbridgeListRooms and ConfbridgeListRoomsComplete events
• ConfbridgeLock and ConfbridgeUnlock actions (no corresponding event)
• ConfbridgeKick action (no corresponding event)
• ConfbridgeStartRecord and ConfbridgeStopRecord actions (no corresponding event)

This PR include tests as implemented for other similar actions/events.

Thank you,

[coveralls]

Coverage decreased (-0.2%) to 92.036% when pulling d35fbb7 on brenard:master into f586d0f on marcelog:master.

[coveralls]

Coverage increased (+6.1%) to 98.357% when pulling 64b72d3 on brenard:master into f586d0f on marcelog:master.

[beqabeqa473]

hi, why you are not merging this pr to the master?

i think lots of people need this functionality which is absent in original repo.