Use case migration

todo

differences:

• service registration (including policy definition)
• trust configuration
• endpoint search
• token requests (including policy definition)
• token introspection
• did method support
• authorizations

order:

• determine trust and security baseline
• determine policies
• determine service registration params/vcs
• all updated to v6
• all migrate away from authorizing through NutsAuthorizationCredentials
• all support new access tokens and token introspection
• all register on discovery service (did:web)
• V6 style client interaction (discovery search, token request with XIS/ECD user info)
• Remove old service registration from DID documents
• Remove old authorization logic