WIP: Update Bc to Bs Pi+ with the same parameters in Bs2JpsiKK decfile
Taking the latest
dkfiles/Bc_Bspi+_Jpsiphi,mm=CPV,update2012,BcVegPy,DecProdCut.dec
we would like to update it with the same set of parameters
dkfiles/Bs_mumuKK,mm=DecProdCut.dec.