Upgrade/canorman new pile up corrections
New pile-up corrections based on nPV instead of SPDHits.
Important note: the values in this MR (at the date of commit 176adf0c) were derived from the data /MC/Upgrade/Beam7000GeV-Upgrade-MagDown-Nu7.6-25ns-Pythia8/Sim09c-Up02/Reco-Up01/30000000/LDST
which are upgrade simulated data from 2017 and are expected to change. Nevertheless, they can be used for now, as they are the 'best' estimate currently available.