Draft: Improvements for matching downstream composites to Velo tracks
Implements offline Velo matching as described in LHCb-DP-2023-004 adapted to Run 3.
Improves existing algorithm to carry out matching as described in the note. With this, we can cut on \chi^2_\mathrm{Match}
in HLT2.
Depends on LHCb!4757
Edited by Marian Stahl