[CLI] Improve object flag description

[AmadeusK525]

Flag descriptions have been implemented in #105, but objects should be handled differently. Maybe a ref value in the flag's description, with the full expanded object representation at the bottom of the help command, or something like that. Inline JSON representations are hard to grasp on a human level

[barbieri]

@AmadeusK525 fixed by #571?

[AmadeusK525]

@AmadeusK525 fixed by #571?

Nah, #571 just makes the inline version work without bugs. For the (near?) future I'd like to have something like this:

Some description here

Flags
--some-flag   object Flag description here (#some-flag)

Global Flags
--global-flag string Flag description here

# some-flag
{
  "field": string,
  "other-field": {
    "data": [int]
  }
}

[barbieri]

@AmadeusK525 take a look at the new repo, see if it's done, otherwise write what's missing