Copyright for libgctp source package in Focal

The General Cartographic Transformation Package was packaged for Debian
by Alastair McKinstry  on 6 August 2009.

It was downloaded from: 
http://newsroom.gsfc.nasa.gov/sdptoolkit/toolkit.html 

This code was written for the USGS and is hence in the public domain; see
http://gcmd.nasa.gov/records/USGS-GCTP.html

and is covered by the disclaimer:
http://www.weather.gov/disclaimer.php

        The information on government servers are in the public domain,
        unless specifically annotated otherwise, and may be used freely by the public
        so long as you do not 1) claim it is your own (e.g. by claiming copyright
        for NWS information -- see below), 2) use it in a manner that implies an endorsement
        or affiliation with NOAA/NWS, or 3) modify it in content and then present it
        as official government material. You also cannot present information of your
        own in a way that makes it appear to be official government information.

Additions were made by Raytheon, Inc. for header files, and are covered by the following
license:

|  Permissiom to use, modify, and distribute this software and its         |
|  documentation for any purpose without fee is hereby granted, provided   |
|  that the above copyright notice appear in all copies and that both that |
|  copyright notice and this permission notice appear in supporting        |
|                          documentation.                                  |