Obnam 3: Server HTTP API authentication and authorization

Goal Last time I pondered on how to implement remote storage in Obnam. I landed on having an Obnam server that guards access to the actual remote storage, which will be on a server with the S3 API. Alternatively, the Obnam serve can store the backups itself. I didn't say that very explicitly in the note for last time, but I think it's important to not require using an S3 instance, for operational…