Enable event-local memory pool in UT hit handling, VeloUT tracking and VeloUTMuon reconstruction
This switches on (in PrVeloUT) the event-local memory pool support added in LHCb!2340 (merged) and adds+enables support for it in UT hit handling.
Use of the event-local pool is also enabled in the VeloUTMuon matching.
This depends on LHCb!2340 (merged).
cc: @decianm
Edited by Olli Lupton