Change Channel Keys

One feature that Hubzilla does not currently have is the ability to change a user's key and the resulting hash stored in the database.

https://hubzilla.org/display/b64.aHR0cHM6Ly96b3RhZGVsLm5ldC9pdGVtL2QyNjY0ZTIxLTAyZGMtNDU1MC1iOGE3LTMxMTE4OTQyZGViMg?f=&zid=scott%40codejournal.dev

https://hubzilla.org/channel/adminsforum?mid=801c0b79-b6f4-43c4-9bc8-83ab9ac94db8

https://socialhub.activitypub.rocks/t/reuse-of-identity-channel-addresses-revocation-reissue-of-keys/2888