B2OC: first import of b2dx multi-decays AProd for 2024 data
- derived from !2391 by Andreea-Irina Hedes
- takes onboard everything from !2920 (closed) up to commit 3cc5331d so leaves out everything needed for 2025
- add 2 tracks multiplicity variables: tracks from the BPV and backward tracks from the BPV
- removed the hlt2 LTU lines as these are buggy and useless in 2024
- updated FT for Run 3
- updated DaVinci and its platform
Edited by Alessandro Bertolin