draft: add several omegab and Xib lines
Something went wrong when switching between master and b2oc_upgrade. Will open a new one.
This MR is to implement several trigger lines for studying omegab and Xib decays, which were in BandQ stripping framework during Run1-2 data-taking periods. Both right sign and wrong sign lines are considered for these decays.
Selections are designed based on standard b2oc tracks and combiners, not taken from the Run1-2 stripping system.
Edited by Mengzhen Wang