Feature request: If an identity has been revoked, send it alongside the document in document.metadata

[insipx]

Is your feature request related to a problem?

libxmtp requires knowing which installations have been revoked, so the client can verify they have indeed been revoked (in the case of a malicious gateway, it could send revoked installation ids as if they have not been revoked).

Describe the solution to the problem

Alongside the DID Document, send the revoked IDS so the client is able to verify their revocation