Use LHCb::Event::v2::RecVertices typedef LumiCounterFromContainer (event-local memory pool support)
Follows the changes in LHCb!2343 (merged) and Rec!1896 (merged) and should be tested in conjunction with those.
The code will compile without this MR, but there will be a runtime error if the lumi line actually fires.
Depends on LHCb!2343 (merged) and Rec!1896 (merged)
cc: @rmatev
Edited by Rosen Matev