External validation routine of script mergeLHE.py.
The routines include merging LHEs produced from different generators: MG5 LO/NLO, Powheg, JHUGen. It can be launched by
bash <(curl -s https://raw.githubusercontent.com/colizz/mergelhe_validate/main/tools/test.sh)See more details from subfolders in ./lhes/.