Add copyight statements
lb-check-copyright --porcelain | xargs -r lb-add-copyright --year 2000-2019
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
lb-check-copyright --porcelain | xargs -r lb-add-copyright --year 2000-2019