Bug#990767: game-data-packager: Add support for gog version of Heretic

[Alexandre Detiste]

Hi,

> The attached patch adds support for the recently released gog
> version of Heretic. Got it working after some trial and error, and
> from what I can see the wad-file (unsuprisingly) matches the
> existing checksums.

Thanks for your patch.

I've also added the url to this game's gog.com page in the metadata.

> In other data files I saw metadata fields for gog, for instance
> https://salsa.debian.org/games-team/game-data-packager/-/blob/master/data/doom.yaml
> However I couldn't find any information on which values are expected
> or where these might be used, so I didn't add any.

"url" is needed to build the full url as seen when doing
"game-data-packager heretic --help"
or when it cna't produce any heretic package

"game" is used for lgogdownloader integration, when you use this tool GDP
can download the setup...exe by itself.

wolf3d.yaml:    gog:
wolf3d.yaml-      url: wolfenstein_3d_and_spear_of_destiny
wolf3d.yaml-      game: wolfenstein_3d