New @type for hidden service descriptors
Hi Karsten, as per #15004 (closed) I'm adding the ability to parse hidden service descriptors to Stem. I know this isn't of interest to Metrics right now but I'd like for us to add a new @type annotation for these documents.
This is a bit similar to #8365 (moved) for which you made commit bba6809. I'm thinking "@type hidden-service-descriptor 1.0" - thoughts?