Added format key to results_parse yc.

[dmageeLANL]

On the same level as 'action'. This avoids printing results with an absurd number of digits to the terminal. And facilitates displaying results as the user desires.

Code review checklist:

• [ ] Code is generally sensical and well commented
• [ ] Variable/function names all telegraph their purpose and contents
• [ ] Functions/classes have useful doc strings
• [ ] Function arguments are typed
• [ ] Added/modified unit tests to cover changes.
• [ ] New features have documentation added to the docs.
• [ ] New features and backwards compatibility breaks are noted in the RELEASE.md

Am I supposed to fill that out?

Anyway, I'm missing the documentation to the docs and typed function arguments. I'll fill those in, but now I want to see if it works. This feature adds a 'format' key to a result which will store and display the result as the user intends. It's inspired by this:

Which is ugly and doesn't match the format I'm visually comparing the results to, which is annoying.