Copyright for openvlbi source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libopenvlbi
Source: http://iliaplatone.github.io/OpenVLBI

Files: *
Copyright: 2017-2018, Ilia Platone 
License: GPL-3+

Files: debian/*
Copyright: 2018, Ilia Platone 
           2021, Thorsten Alteholz 
License: GPL-3+

Files: vlbi/base64_luts.h
Copyright: 2016 Rumen G. Bogdanovski
License: LGPL-2.1+

Files: vlbi/base64.*
Copyright: 2003 Elwood C. Downey
Comment:
    Complete rewrite of to64frombits() - gives 2x the performance
    Complete rewrite of from64tobits_fast() - gives 3x the performance
    Keeping from64tobits() for compatibility - gives 2.5x the performance
    of the old implementation (Aug, 2016 by Rumen G.Bogdanovski)
    Adapted from code written by Eric S. Raymond 
License: LGPL-2.1+

License: LGPL-2.1+
 On Debian systems the license can be found at /usr/share/common-licenses/LGPL-2.1

License: GPL-3+
 On Debian systems the license can be found at /usr/share/common-licenses/GPL-3