plugins XEP-0060, XEP-0376, XEP-0465, CLI: PAM + PSS implementation: - update psSubscriptionsGet to use serialised return value - implement XEP-0376 Pubsub Account Management - implement XEP-0465 Public Pubsub Subscriptions - CLI `pubsub` commands updated accordingly, and added `--public` flags to `subscribe`, `Subscriptions` and `node Subscriptions get` ⚠ `XEP-0465` is speculative, the XEP has been accepted by council but not published yet. As is should be the next one, and current latest one is `XEP-0464`, `XEP-0465` has been anticipated. rel 365