Copyright for dioptas source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: dioptas
Upstream-Contact: Clemens Prescher 
Source: https://github.com/Dioptas/Dioptas

Files: *
Copyright: 2014-, Clemens Prescher 
 2014-2019 GSECARS, University of Chicago, USA
 2015-2018 Institute for Geology and Mineralogy, University of Cologne, Germany
 2019 DESY, Hamburg, Germany
License: GPL-3+

Files: debian/*
Copyright: 2021, Roland Mas 
License: GPL-3+

License: GPL-3+
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 .
 On Debian systems, the full text of the GNU General Public
 License version 3 can be found in the file
 `/usr/share/common-licenses/GPL-3'.