Draft: Trig analaysis update main
WIP MR - two commits:
- one simplifying TrigTrackSelector to reduce the dependency on McParticleEvent/TruthParticle.h and use GenParticle diectly. Also noting where updates will be made as part of the migration of xAOD::TruthParticle from barcode to uniqueID.
- second updating TIDA::Track method/variable names - this would only affect jobs run outside of athena using this class.