Include namespace in "sfdx force:org:display" result

[toddhalfpenny]

Is your feature request related to a problem? Please describe.
As far as I can see, the only way to get the namespace of an (scratch) org is to log into it.

What are you trying to do
Get the namespace of a (scratch) org from the CLI.

Describe the solution you'd like
Be great if the namespace was returned for a sfdx force:org:display call

Describe alternatives you've considered
Creating a plugin to do this using the soql SELECT NamespacePrefix FROM Organization;, or perhaps it's already available via this.createOrg()?

Additional context
n/a

[mshanemc]

@toddhalfpenny This should be added in the new open-source version. You can try it early, here: #835

[mshanemc]

shipped it https://github.com/forcedotcom/cli/blob/main/releasenotes/README.md#5140-march-18-2021---cli-7920