Adapted code to non movable, non copyable counters
In particular :
- replaced vector of counters with deque in TrackBestTrackCreator
- use prefix ++ operator everywhere, as postfix one will go
Build on top of LHCb!3192 (merged)
Goes together with LHCb!3284 (merged) and Phys!1001 (merged)
Edited by Sebastien Ponce