FPGATrackSim: Add a few stats and debug for FPGA based acts tracks

Yannis Maznasrequested to merge
imaznas/athena:FPGATrackSimPF_v1 into main

This should add some statistics and per-event info on the ActsTrk::TrackContainer objects produced by (C)KF in the FPGATrackSim workflow.

@jahreda @tbold

Merge request reports