Copyright for freehep-io source package in Focal

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: FreeHEP I/O library
Upstream-Contact: The FreeHEP team 
Source: http://java.freehep.org/

Files: *
Copyright: 2000-2007, CERN, Geneva, Switzerland
           2000-2007, SLAC, Stanford, California, U.S.A.
           2000-2007, University of California Santa Cruz, U.S.A.
License: LGPL-2.1+
  On Debian GNU/Linux system you can find the complete text of the
  LGPL-2.1 license in '/usr/share/common-licenses/LGPL-2.1'
  No license files are included in upstream tarball but copyright holders
  list is available at
  
  and adopted license at 

Files: debian/*
Copyright: 2009-2016, Giovanni Mascellani 
           2009-2010, Gabriele Giacone <1o5g4r8o@gmail.com>
           2015, Philipp Huebner 
License: GPL-3+
  On Debian GNU/Linux system you can find the complete text of the
  GPL-3 license in '/usr/share/common-licenses/GPL-3'