Test the new BPVIP functor

Add the new functor F.BPVIP to evaluate impact parameter wrt bestPV.

Depends on: Rec!2720 (merged)

DaVinciExamples/python/DaVinciExamples/tupling/example-tupling-AllFunctors.py

@@ -81,6 +81,7 @@ def all_variables(pvs, DTFR, ptype):
     vars['CHARGE'] = F.CHARGE
     #    vars['SIZE'] = F.SIZE(DTFParts)  # doesn't work
 
+    vars['BPVIP'] = F.BPVIP(pvs)
     vars['BPVIPCHI2'] = F.BPVIPCHI2(pvs)
     if (_composite == ptype):  # all these require a vertex
         vars['BPVETA'] = F.BPVETA(pvs)