B2OC: add 9 B2DDK(Kst) lines and a general B2DDK line builder (shifters PLEASE ignore)
B0 -> D+ D- K*0
B0 -> D*+ D- K*0
B0 -> D+ D*- K*0
B0 -> D+ D*- K0
B0 -> D_s+ D_s- K*0
B+ -> D+ D0 K*0
B+ -> D+ D- K+
B+ -> D_s+ D_s- K+
B+ -> D0 D0 K+
Edited by Alessandro Bertolin