Copyright for zlib source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Files-Excluded:
 contrib/ada
 contrib/amd64
 contrib/asm686
 contrib/blast
 contrib/delphi
 contrib/dotzlib
 contrib/gcc_gvmat64
 contrib/infback9
 contrib/inflate86
 contrib/iostream
 contrib/iostream2
 contrib/iostream3
 contrib/masmx64
 contrib/masmx86
 contrib/pascal
 contrib/puff
 contrib/testzlib
 contrib/untgz
 contrib/vstudio
 doc/rfc*

This is the pre-packaged Debian Linux version of the zlib compression
library.  It was packaged by Michael Alan Dorman 
from sources originally retrieved from ftp.uu.net in the directory
/pub/archiving/zip/zlib as the file zlib-1.0.4.tar.gz.

There is a homepage at http://www.gzip.org/zlib/ 

Acknowledgments:

  The deflate format used by zlib was defined by Phil Katz. The deflate
  and zlib specifications were written by Peter Deutsch. Thanks to all the
  people who reported problems and suggested various improvements in zlib;
  they are too numerous to cite here.

Copyright notice:

  Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Jean-loup Gailly        Mark Adler
  jloup@gzip.org          madler@alumni.caltech.edu