Feature/xib and omega slmuonic
This MR prepares some decfiles which will be used for the SL hackathon at the end of November 2024, and will include these 3 modes: Xib- -> Xic0 mu+ nu; Xic0 -> pKKpi Xib0 -> Xic+ mu-nu; Xic+ -> pKpi Omegab -> Omegac mu- nu