Copyright for libthai source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libthai
Upstream-Contact: Thai Linux/FOSS Devel 
Source: ftp://linux.thai.net/pub/thailinux/software/libthai/

Files: *
Copyright: 2001-2017 Theppitak Karoonboonyanan ,
                     Pattara Kiatisevi ,
                     Vuthichai Ampornaramveth ,
                     Poonlap Veerathanabutr ,
                     Chanop Silpa-Anan 
License: LGPL-2.1+
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 .
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.
 .
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 .
 On Debian systems, the complete text of the GNU Lesser General Public
 License version 2.1 can be found in `/usr/share/common-licenses/LGPL-2.1'.

Files: debian/*
Copyright: 2003-2006 Pattara Kiatisevi 
           2006-2018 Theppitak Karoonboonyanan 
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; either version 2 of the License, or
 (at your option) any later version.
 .
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 .
 On Debian systems, the complete text of the GNU General Public License
 version 2 can be found in `/usr/share/common-licenses/GPL-2'.