Version 0.10.0

Added

• Add api.NewServer()
• Add api.Server

Changed

• [BC] The api package now implements the configspec from dogmatiq/interopspec
• [BC] api.Client is now a struct, not an interface

Removed

• [BC] Remove api.Client.ListApplicationIdentities()
• [BC] Remove api.RegisterServer()
• [BC] Remove the api/discovery package, use dogmatiq/discoverkit instead
• [BC] Remove the api/fixtures package