Draft: [CPU/GPU Validator comparator] initial commit

Numerical comparison between the outputs of the validators between the CPU and GPU Allen runs. See https://indico.cern.ch/event/1477469/contributions/6246999/attachments/2977745/5242345/Validator-comparator-LHCb-week-Dec-2024.pdf

The command help should be sufficient to see the different possible arguments:

cd test/comparators/src python cmpValidators.py -h

Default files are set up with symbolic links:

• 2 for Allen ouputs: the reference file and the checked file
• The description file of Admitted Errors (JSON file)

To run the comparison :

python cmpValidators.py