Draft: Update for B2pphh

patch generated by https://gitlab.cern.ch/lhcb/Moore/-/jobs/37993339

last round, the rate estimated by a old script, so it is underestimated.

Add functor:

F.MIN(F.MINIPCHI2(pvs)) > daughter_mipchi2_min
F.BPVIPCHI2(pvs) < bpvipchi2_max
F.BPVLTIME(pvs) > ltime_min
F.MAXDOCACUT(amaxdoca4h)

Now the rate

pipi: 285 Hz
KK: 148 Hz
Kpi: 285 Hz

bandwidth for all three lines (40K events, 100K samples are running)

0.125 GB/s 

efficiency based on CanRecoChildren

pipi: 0.222 +/- 0.035
KK: 0.368 +/- 0.036
Kpi： 0.239 +/- 0.034