Updated the VPHitsMonitor to use the MCHit<->Cluster linker.
This MR updates the VPHitsMonitor to use the linker tables from Lbcom!469 (merged). Part of this change adds also the explicit dependency on the MCParticles, which were previously assumed to be unpacked already before.
I also only consider MCHits with the highest weight in comparing the cluster residuals. We could revert this to considering all hits if desired (@valukash). The Moore test will be updated when we know the naming for Digit<->MCHit-links unpacker function.
Edited by Laurent Dufour