New eventbuilder and eventsink device. Includes new trigger device from closed MR.

• Added event builder and event sink to reco/mq.
• Removed redundant files from MQ/mcbm (are succeeded by corresponding files in reco/mq).

Builds upon !793 (closed) and !792 (merged)

@v.friese @f.uhlig @p.-a.loizeau

On edit: Supercedes !793 (closed)

• Added trigger algorithm to reco/mq.