Update licence and year
Before the release in openbach and openbach-extra, important to have a check on licences Noted (not complete) :
- the copyright is 2016-2019 in all files : go to 2016-2020
Copyright © 2016−2019 CNESthe minus sign is not - and have to be changed (weird hyphen).
- not keep
©and put (C)
Good version :
̀ Copyright (C) 2016-2020 CNES`