feat: #528 Add-Key to a role

[ChevronTango]

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Fixes #528

Release Notes: Introduces the add-key command

Types of changes:

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected). Please ensure that your PR title is a Conventional Commit breaking change (with a !, as in feat!: change foo).

Description of the changes being introduced by the pull request: Introduces the add-key command

Please verify and check that the pull request fulfills the following requirements:

• [ ] Tests have been added for the bug fix or new feature
• [ ] Docs have been added for the bug fix or new feature

[kommendorkapten]

Nice work 🚀
Left some comments that should be fixed.

[ChevronTango]

Nice work 🚀 Left some comments that should be fixed.

Brilliant! Thanks for those great spots! Just patched it now so should be ready to go! :)

[kommendorkapten]

Sorry for not responding to this, been very busy. I will go over your latest changes next week 👍