B2OC: merge request to collect updates for the May 15th Moore deadline

Needs and has to be tested with: lhcb-datapkg/ParamFiles!98 (merged)

This MR includes all the following changes from B2OC WG, aiming for data taking after June TS:

1. Tuning of D0 -> KS h h builders (!3410 (merged))
2. Tuning of Dst -> D0 pi and Phi -> K K builders (!3415 (merged))
3. Tuning of Lb -> Lc+ Lc- (p pbar) n0 lines (!3417 (merged))
4. Tuning of Lb -> D+ D- p line (!3421 (merged))
5. Tuning of Lb -> Lc pi lines (!3438 (merged))
6. Tuning of Xicc builders (!3446 (merged))
7. Tuning of Dst0 -> D0 pi0 (gamma) builders (!3455 (merged))
8. Enable some of B2OC DD lines (!3459 (merged))
9. Update of generic B hadron MVA (!3477 (merged))

Remarks on DD lines: there are 84 HLT2 and 131 Sprucing lines added, the rates/bandwidth will be increased. From a local test on HLT1-filtered min-bias MC (where UT is NOT included in HLT1 but included in HLT2 script), the maximum rate of DD lines is around 30 Hz (3 events fired out of 100k).