add occupancy banks and bookkeeping class

[baltzell]

This adds new occupancy banks and bookkeeping class, to reduce the calibration data volume from detector hit banks.

        "name": "OCC::FTOF::adc",
        "group": 500,
        "item": 14,
        "info": "Occupancy Bank",
        "entries": [
            { "name":"sector"    , "type":"B", "info":"sector"},
            { "name":"layer"     , "type":"B", "info":"layer"},
            { "name":"component" , "type":"S", "info":"component"},
            { "name":"hits"      , "type":"F", "info":"number of hits"}

• Finalize occupancy bank naming
• Bank group number
• Use FilteredBank for order-hijacking by denoising
• Index count determined based on schema; 4 for FTOF/CTOF/CND
• Check for missing detectors
• Ignore bank rows with negative indices
• YAML variable, occupancyPrescale
• Use it from recon-util and Clara writer service

The main consumer of these new occupancy banks is clas12-timeline.

Depends on #1380, #1381, #1382, #1383.

An example occupancy bank:

With a prescale of 100:

And the default 1000: