Copyright for adplug source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: AdPlug
Upstream-Contact: Simon Peter 
Source: https://github.com/adplug/adplug
Files-Excluded: doc/fdl.texi
                doc/libadplug.*
                test/*

Files: *
Copyright: 1999-2010 Simon Peter , et al.
License: LGPL-2.1+

Files: debian/*
Copyright:
 2005-2007 Daniel Baumann 
 2011 Артём Попов 
License: GPL-3+

Files: adplugdb/adplugdb.cpp src/database.* src/debug.*
Copyright:
 2002 Riven the Mage 
 2002-2006 Simon Peter , et al.
License: LGPL-2.1+

Files: adplugdb/*getopt*
Copyright: 1987-2000 Free Software Foundation, Inc.
License: LGPL-2+

Files: src/adl.*
Copyright:
 2006 The ScummVM project
 2006 2006 Torbjorn Andersson and Johannes Schickel
License: LGPL-2.1+ or GPL-2+

Files: src/adlibemu.*
Copyright: 1998-2001 Ken Silverman
License: LGPL-2+

Files: src/fmopl.*
Copyright: 1999, 2000 Tatsuyuki Satoh, MultiArcadeMachineEmurator development
License: LGPL-2.1+

License: LGPL-2.1+
 On Debian systems, the full text of the GNU Lesser General Public License
 version 2.1 can be found in the file `/usr/share/common-licenses/LGPL-2.1'.

License: LGPL-2+
 On Debian systems, the full text of the GNU Library General Public License
 version 2 can be found in the file `/usr/share/common-licenses/LGPL-2'.

License: GPL-2+
 On Debian systems, the full text of the GNU General Public License
 version 2 can be found in the file `/usr/share/common-licenses/GPL-2'.

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'.