Pay more attention to when a Node ID is displayed in compact form. As
this was sometimes used to save space, e.g. in `rad node status` in
combination with long node addresses (like .onion names), also implement
a compact format for node addresses and use that instead in some cases.
Progress notifications in spinners keep the short form.
Add a test to exercise adding canonical reference rules and pushing new
canonical tags.
A change in `rad id` was required to allow adding a new payload to the document,
i.e. one that does not already exist.
Adding rules is also documented in the man page for `rad id`.
The business logic of modifying the identity document should not live in the CLI
code for updating said document.
Instead, we extract out that logic into separate update functions and these are
using from the CLI instead.
Lorenz Leutgeb
Fintan Halpenny