Ad `orbitdb://` protocol

[RangerMauve]

https://github.com/orbitdb/orbit-db/blob/master/GUIDE.md

• Need to coordinate a URL scheme with them (shouldn't be hard)
• Needs identities to be in URL, maybe?
• What HTTP methods and response codes make sense for CRDT operations? Is it JSON based?

[RangerMauve]

Gonna close this unless somebody expresses interest. 😁