Add in the history global attribute information
@simone.kotthaus and @mvanhove I think we should add two informations in the history
global attribute of the L2A files,
- The url related to the gitlab loacation of this code i.e
https://gitlab.in2p3.fr/ipsl/sirta/mld/stratfinder/stratfinder/-/blob/master/STRATfinder.m
- and the commit shabang (the id of the commit to know with which commits
stratfinder
have been executed