Update LHCbTest to support checking of 1D histograms and profile histograms

Extends the logic used to compare counters to also compare the stats printed for 1D histograms and profile histograms.

Relies on some minor format changes in Gaudi (gaudi/Gaudi!817 (merged)) to include in the printout line used as the regex search for the number of histograms, and also Rec!1336 (merged) to avoid the use of the character | in histogram titles, as this is used as the table delimiter.

Can in principle be extended to other histograms (e.g. 2D) as required.

FYI @cattanem @sponce @clemenci

PRs currently marked as WIP, so @cattanem you can test them as you see fit. Will require most reference logs to be updated.