Draft: BnoC: B2Charmless inclusive HLT2 lines and Spruce lines

this MR should include the eta' decays into pi+ pi- {X0},

where X0 is either gamma or resolved pi0(->gamma gamma) and combined to a B meson, i.e., B0 -> rho(770)0 rho(770)0.

signal MC samples to calculate the efficiencies :

1. B -> rho rho : EventType: 11104061
2. B -> (eta' -> pi+ pi- gamma) (phi -> K+ K-) : EventType: 11104222
3. B -> eta' eta' : EventType: 13404400 Bs_etapetap,etap=Cocktail,eta=Cocktail,DecProdCut,EqProd
4. B -> (eta'-> pi+ pi- gamma) KS0 : EventType: 11104313

To-dos

• check the efficiency with corresponding MCs.

1. Line:Hlt2BnoC_BdsToEtapEtapDecision Efficiency: 0.289 +/- 0.041
2. Line:Hlt2BnoC_BdsToEtapEtapDecision Efficiency: 0.405 +/- 0.045
3. Line:Hlt2BnoC_BdsToEtapEtapDecision Efficiency: 0.317 +/- 0.059
4. Line: Hlt2BnoC_BdsToEtapKS_LLDecision Efficiency: 0.231 +/- 0.117

• check the rates (kHz) with new hlt1 filtered MB sample [/MC/2022/Beam6800GeV-2022-MagDown-NoUT-Nu2.1-25ns-Pythia8/Sim10b/hlt1_pp_no_gec_no_ut/HLT2-pp-commissioning/30000000/XDST]

     "Hlt2BnoC_BdsToRhoRho_InclusiveDecision": 5.329 ± 0.2026,
     "Hlt2BnoC_BdsToRhoRho_InclusiveDecisionExclusive": 4.92656 +/- 0.1948
     "Hlt2BnoC_BdsToEtapKsDDDecision": 0.0,
     "Hlt2BnoC_BdsToEtapKsDDDecisionExclusive": 0.0,
     "Hlt2BnoC_BdsToEtapKsLLDecision": 0.39505 +/- 0.0553,
     "Hlt2BnoC_BdsToEtapKsLLDecisionExclusive": 0.10844 +/- 0.0289, 

• optimize cuts

https://gitlab.cern.ch/lhcb-dpa/project/-/issues/243

#667