Add get_access_url function for data in FilesFromDirac
Update PRConfig.FilesFromDirac to add the ability to access real data as mentioned in #9
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
Update PRConfig.FilesFromDirac to add the ability to access real data as mentioned in #9