Added OVHcloud storage classes according to https://help.ovhcloud.com/csm/en-ie-public-cloud-storage-s3-choosing-right-storage-class?id=kb_article_view&sysparm_article=KB0047293 and https://help.ovhcloud.com/csm/en-ie-public-cloud-storage-s3-choosing-right-storage-class?id=kb_article_view&sysparm_article=KB0047293
Co-authored-by: Bjoern Franke <bjo@schafweide.org>