Draft: jianyu and chuangxin: add dkfiles/Lb_LcDsKK(pipi),pKpi,KKpi=DecProdCut.dec
jianyu and chuangxin: add dkfiles/Lb_LcDsKK,pKpi,KKpi=DecProdCut.dec; Lb_LcDspipi,pKpi,KKpi=DecProdCut.dec for generating this two types MC
jianyu and chuangxin: add dkfiles/Lb_LcDsKK,pKpi,KKpi=DecProdCut.dec; Lb_LcDspipi,pKpi,KKpi=DecProdCut.dec for generating this two types MC