Unit tests for console.AskAsync, console.ConfirmAsync

[FrankRay78]

• Unit tests for console.AskAsync, console.ConfirmAsync
• Reordering of some code for better self-documentation

[FrankRay78]

Hello @tmds, I had a few spare cycles today and knocked up the attached unit test coverage for your spectreconsole#1194

Could you peer review this PR, and either:

1. Merge, push to the PR branch
2. Make changes, then 1.
3. Tell me if you don't agree/don't like this, and we can have a discussion

We should take the mindset of peers collaborating, not you trying to appease me. So speak openly, and we'll get to a point of both being in agreement the PR is good to merge.

I hope that makes sense.

[tmds]

Thanks for helping me complete the PR @FrankRay78!