tesla-control: Add guest mode support

[sethterashima]

Adds guest mode commands to the tesla-control CLI. The commands were already supported in the SDK and proxy.

Description

Please include a summary of the changes and the related issue.

Fixes #321

Type of change

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• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Bug fix (non-breaking change which fixes an issue)
• Documentation update

Checklist:

Confirm you have completed the following steps:

• My code follows the style of this project.
• I have performed a self-review of my code.
• I have made corresponding updates to the documentation.
• I have added/updated unit tests to cover my changes.