[fpc-pascal] TStream descendant to compress/decompress gzip data from another stream

[Michalis Kamburelis]

Justin Smyth wrote:
> I have converted the one from fpc to its own library to do streams , can
> email it to you later if you wish

Yes, that would be appreciated. As long as everything you send me is 
covered by the same license as FPC RTL (LGPL with static linking 
exception), so that I can use it in my own code and also contribute it 
back to FPC :)

Michalis