Modernized VPDepositCreator and made it functional
Note that the new version has less flexibility than the old one : there are only 2 flavors, namely VPDepositCreator and VPDepositCreatorSpillOver. The later one deals with Next and Prev MCHits while the former does not.
On the way, EnsureVPBanks algorithm has been dropped as it's now useless.
Edited by Sebastien Ponce