Add ICARUS HW trigger information to CAFs

[rtriozzi]

This PR adds to the CAFs additional trigger information available within the ICARUS trigger hardware from Run3:

• trigger_cryo_source: the cryostat with the first trigger within the gate;
• trigger_logic_bits: the trigger logic for such first trigger (adder-only, majority-only, or both);
• beam_to_trigger_time: the trigger time from the beam gate opening for such first trigger (in nanoseconds).

Those variables are added to the CAFs via the dedicated FillTriggerICARUS function.
Some more information on the new diagnostics can be found in SBN DocDB 36624, SBN DocDB 36497.
This PR depends on the corresponding sbnanaobj PR #167 that adds the variables to the CAF structure.

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