Add Bs0Ds2460mpip decay file EventType: 13166063

EventType: 13166063 NickName: Bs0Ds2460mpip,Ds2460_Dspipi=TightCut Descriptor: [B_s~0 -> (D_s1(2460)+ -> (D_s+ -> K+ K- pi+) pi+ pi-) pi-]cc