Add entries from Sterophonick homebrew hub

[avivace]

Unfortunately, no metadata here: https://github.com/Sterophonick/Homebrew-Hub

[dag7dev]

It's full of random stuff, without metadata, without guarantees of provenance.

In case we import it in bulk we run the risk of putting everything there randomly, while the idea of HH is to make the various entries accessible with correct (or at least as reliable as possible) metadata

So, I would keep that repository as a place to look for specific roms if we can't find them, since they are from public sources.

Perhaps in the future we can figure out which roms are missing and possibly add them manually.