Add identity-based TLS auth and UI for client/daemon auth

Add identity-based TLS authentication and use public keys to authenticate access.
This is an implementation of the proposal from #7667.

FSNotify support has not been added to detect changes to authorized keys but may be added in a follow up PR.

why is so much in `if err!=nil` cant we return early or something if err==nil, why are we doing so much if there is an error?