LArHitContainerCnv_p2 use DataPool to avoid many small allocations
LArHitContainerCnv_p2 use DataPool from AthAllocators to avoid many small allocations
ping
@jchapman and @tadej since "requested" by them
@ssnyder as the DataPool expert
@droussea as this was the reason for !62084 (merged) .
Edited by Christos Anastopoulos