TRIG8 Derivation: Add HLT jets container

Add the HLT jets container for displaced jet triggers and boffperf triggers. To avoid writing out jets for every event passing any of the triggers in the selection, introduce a new thinning tool which checks the passing triggers. If the event is not in the list for this tool, the contents of the supplied container are masked. This tool is generic for all containers.

The size increase for jet containers is 1.2 kb/event, offline jets are already included with a size of 14 kb/event, so the impact on overall file size is hopefully small.