Add Screenscraper as a source
Copied from https://bugzilla.gnome.org/show_bug.cgi?id=787355
It would be great for Games to access https://www.screenscraper.fr/ to get game metadata via Grilo.
Here is an example of how to use the public API: https://www.screenscraper.fr/api2/jeuInfos.php?devid=xxx&devpassword=yyy&softname=zzz&output=xml&ssid=test&sspassword=test&crc=50ABC90A&systemeid=1&romtype=rom&romnom=Sonic%20The%20Hedgehog%202%20(World).zip&romtaille=749652