Add option for storing L1 jet RoIs to PHYS derivations

This adds an option (disabled by default) to store L1 jet RoIs to PHYS derivation formats. These are required for trigger matching by analyses working on the turn-on region of jet triggers.

The size has been found to be, on average, 0.077 kb/evt in data and 0.15 kb/evt in a resonant HHH->6b signal MC sample. I estimate this can be reduced by a factor of about 3 if necessary by storing only the eta, phi, and et, if this is technically possible.

Since AMG is unavailable for a few weeks to discuss including this more widely, the new flag is disabled by default but can be manually turned on (e.g. in a preExec) for specific cases where users need it for testing etc. in the meantime.

Only "legacy" L1 jet RoIs (i.e. not Phase-I) are included here. No checks on the data year/MC campaign are needed for now, since this is enabled manually case-by-case. The Phase-I RoIs can be considered in a separate MR.