add calibrated combined vzero EP for LHC10h data

multiple updates for jet v2 task (should have been multiple commits actually)
a) added calibrated combined vzerp EP for LHC10h data
calibration is forked from the procedure used in the flow package (to avoid dependency)
combination relies on weight (chi) evaluated from event plane resolution of vzeroa and vzeroc
b) added functions to evaluated q-vectors (component wise) for different sub-detectors
c) converted helper functions to static functions
d) added missing debug flags
e) removed deprecated code (event selection)
f) fixed infinite loop bug in QA routine which occured when expected runnumbers did not coindice with detected runnumbers
g) fixed devision by zero bug for events with 2 (or less) accepted tracks