Migrate DetailedTrackTruthBuilder to used GenParticle::id rather than barcodes
This merge request is part of the preparation for migrating Athena away from using GenParticle barcodes (removed in HepMC3) as a unique identifier for truth particles to GenParticle::id()
instead.
DetailedTrackTruthBuilder
updated to use id rather than barcode in HepMcParticleLink constructors.