Copyright for libburn source package in Nile V2.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libburn
Upstream-Contact: bug-xorriso@gnu.org
Source: http://files.libburnia-project.org/releases/

Files: *
Copyright: 2002-2006 Derek Foreman 
           2002-2006 Ben Jansens 
           2006-2008 Mario Danic 
           2006-2023 Thomas Schmitt 
License: GPL-2+

Files: debian/*
Copyright: 2006      Ante Karamatic 
           2006-2008 Simon Huggins 
           2008-2009 Matthew Rosewarne
           2008      Mario Danic 
           2011      Mats Erik Andersson 
           2008-2012 George Danchev 
           2015-2023 Thomas Schmitt 
License: GPL-2

License: GPL-2
 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; version 2 dated June, 1991.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.

License: GPL-2+
 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; version 2 dated June, 1991, or (at
 your option) any later version.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.