Copyright for indi-nightscape source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: indi-nightscape
Source: https://github.com/indilib/indi-3rdparty
Comment: this package contains prebuilt binaries and need to go to non-free

Files: *
Copyright: 2018 Dirk Niggemann
License: LGPL-2

Files: debian/*
Copyright: 2021 Thorsten Alteholz 
           2018 Jasem Mutlaq 
License: LGPL-2

License: LGPL-2
 On Debian based system the LGPL-2 can be found in /usr/share/common-licenses/LGPL-2