Copyright for python-pynlpl source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: PyNLPl
Upstream-Contact: Maarten van Gompel 
Source: https://github.com/proycon/pynlpl

Files: *
Copyright: 2016 Maarten van Gompel
License: GPL-3

Files: pynlpl/clients/cornetto.py
Copyright: 2016 Fons Laan, Maarten van Gompel
License: GPL-3

Files: pynlpl/lm/srilm.py
Copyright: 2016 Sander Canisius, Maarten van Gompel
License: GPL-3

Files: pynlpl/formats/dutchsemcor.py
Copyright: 2016 Maarten van Gompel, Rubén Izquierdo
License: GPL-3

Files: pynlpl/datatypes.py
Copyright: 2016 Peter Norvig, Maarten van Gompel
License: GPL-3
Comment: Contains parts derived from MIT-licensed work

Files: pynlpl/evaluation.py
Copyright: 2016 Maarten van Gompel, SciKit Learn Team
License: GPL-3

License: GPL-3
 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`.