refactor `EVALUATION` for the `edm4hep` update
Since the data model has changed, we need to refactor some of the evaluation code. Things to do include:
- update our usage of
eic::Index, since we now use PODIO relations instead - should we use
edm4hep::MCParticleto replacedd4pod::Geant4Particle? - how to match
ReconstructedParticleto the MC generated particle? we no longer havemcID, do we need to add a relation ineicd?