WIP: Add new DAOD_PHYSLLP derivation and associated tools
This MR is to keep track of developments toward building a new derivation format for Run 2/3 long-lived particle (LLP) analyses unable to use DAOD_PHYS. This format builds off of PHYS, and adds
- VrtSecInclusive (VSI) secondary vertex container
- InDetTrackParticles and InDetLargeD0TrackParticles associated with VSI vertices
- InDetTrackParticles and InDetLargeD0TrackParticles associated with AntiKt4EMTopoJets
- LRTElectrons and MuonsLRT
- BTagging_AntiKt4EMTopo container
- More TBD....