Store subtracted calo cells instead of AllCalo when HI reco and cell subtraction
For the time being, in AOD, (a thinned version) of the CaloCellContainer AllCalo is stored. But this is mostly useless when energy subtraction at cell level is done in heavy ion reco (HeavyIon.Egamma.doSubtractedClusters = True). All cell links are then useless.
With this MR, we instead store the Subtracted cells.
Obviously this will change the reco output for heavy ion jobs, but there is no CI test to see this I think.