feat: support "tailscale cert" command

[artis3n]

Allow users to configure certificates through Tailscale (https://tailscale.com/kb/1153/enabling-https/) via this role. Open question about what that support would look like.

[artis3n]

Once Ansible makes me convert this into a collection, this support can be provided through another role inside the tailscale collection.

[Nikola-Milovic]

Any updates on this?

[abeluck]

Once Ansible makes me convert this into a collection, this support can be provided through another role inside the tailscale collection.

We would like to depend on this role in our internal collection, but since collections can not depend on standalone roles (and vice verse) we cannot :(

Would you like some support (PR, etc) in creating a new collection containing this role?

[artis3n]

I was just reflecting on that as the year ends: I am planning on setting aside some significant time and getting this migrated into a collection so that other use cases like that can be added. The biggest changes I think will be inside the Molecule tests and CI suite.

[artis3n]

Most important step of this process: what should this role be called inside the collection? Collecting feedback here: #529