Support Typer CLIs

[smingerson]

Prework

• Read and abide by the Great Docs code of conduct and contributing guidelines.
• Search for duplicates among the existing issues (both open and closed).

Proposal

Typer is another popular CLI definition tool for python. It actually vendors click and wraps that particular version. I’m not sure if that would make it easier or harder to support.

[rich-iannone]

Thanks for the issue! This is definitely something we will support (and was something that was on the early roadmap but, for some reason, isn't there any more).