Copyright for libewf source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libewf
Upstream-Contact: Joachim Metz 
Source: https://github.com/libyal/libewf-legacy

Files: *
Copyright: Joachim Metz , Hoffmann Investigations
License: LGPL-3+

Files: debian/*
Copyright: 2015 Joao Eriberto Mota Filho 
           2013 Pierre Chifflier 
           2009, Cristian Greco 
           2008-2009, Daniel Baumann 
License: LGPL-3+

Files: manuals/ewfinfo.1 manuals/ewfverify.1
       manuals/ewfexport.1 manuals/ewfacquire.1
Copyright: 2006-2009 Kees Mastwijk 
License: LGPL-3+

Files: pyewf/*
Copyright: 2008, David Collett 
           2009, Joachim Metz 
License: LGPL-3+

License: LGPL-3+
 On Debian systems, the complete text of the GNU General
 Public License can be found in `/usr/share/common-licenses/LGPL-3'.