Add support for the GamePark GP32

The GamePark GP32 was primarily used by people as an emulation handheld but it actually had it's own library of commercially available physical games as well as multiple revisions of the console itself. GP32 games and systems don't come up on eBay very often so having an archive of sold listings and historic prices on VGPC would be awesome! I'd also like to be able to track the games I already own