### Description

Recently, we added [a new DAG dependencies view](https://github.com/apache/airflow/pull/13199) to the webserver. It would be helpful if a similar diagram could also be displayed/generated using the CLI. For now, only [one DAG can be displayed](http://airflow.apache.org/docs/apache-airflow/stable/usage-cli.html#exporting-dag-structure-as-an-image) using CLI.
![image](https://user-images.githubusercontent.com/12058428/137945580-6a33f919-2648-4980-bd2c-b40cfcacc9fe.png)

If anyone is interested, I will be happy to help with the review.

### Use case/motivation

* Keep parity between CLI and web serwer.
* Enable the writing of scripts that use these diagrams, e.g. for attaching in the documentation.

### Related issues

https://github.com/apache/airflow/pull/13199/files

### Are you willing to submit a PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

airflow/cli/cli_parser.py
ARG_USE_RANDOM_PASSWORD = Arg(
    ('--use-random-password',),
    help='Do not prompt for password. Use random string instead.'
    ' Required to create a user without --password ',
    default=False,
    action='store_true',
)
ARG_USER_IMPORT = Arg(
    ("import",),
    metavar="FILEPATH",
    help="Import users from JSON file. Example format::\n"
    + textwrap.indent(
        textwrap.dedent(
            '''
            [
                {
                    "email": "foo@bar.org",
                    "firstname": "Jon",
                    "lastname": "Doe",
                    "roles": ["Public"],
                    "username": "jondoe"
                }
            ]'''
        ),
        " " * 4,
    ),
)
ARG_USER_EXPORT = Arg(("export",), metavar="FILEPATH", help="Export all users to JSON file")
# roles
ARG_CREATE_ROLE = Arg(('-c', '--create'), help='Create a new role', action='store_true')