Copyright for sweethome3d source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Sweet Home 3D - Interior 2D design application with 3D preview
Upstream-Contact: Emmanuel Puybaret, eTeks 
Source: http://www.sweethome3d.com/
Comment:
 See README.source how and why we repack the sources.

Files: *
Copyright: 2006-2019, Emmanuel Puybaret, eTeks 
License: GPL-2+

Files: src/com/eteks/sweethome3d/swing/resources/icons/tango/*
Copyright: Public Domain
License: public-domain
 Tango theme toolbar and menus icons included as part of this product are in
 public domain.

Files: debian/*
Copyright: 2011,      Gabriele Giacone <1o5g4r8o@gmail.com>
           2016-2019, Markus Koschany 
License: GPL-2+

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