Add new providers and smaller fixes * 🐛 Fix wrong gnd URLs * 🐛 Fix missing matching information after a new crawl (thanx @dodis) * ✨ Include more data from eth zürich * ✨ Include goesteli archive (thanx @k-r.ch) * ✨ Add dump importer for part of viaf * ✨ change widget order of elite-suisse (thanx @jean_ceppi)