List Subcommand Improvements

[carolynzech]

Improvements to the list subcommand.

• Print the location of the JSON file for --format=json (List command using --format=json should print the location of the generated json file. #3633)
• Use CommonArgs instead of VerificationArgs (List subcommand accepts redundant arguments #3632)
• Add a Markdown option. The pretty table is nice for smaller packages, but as we progress with the standard library verification effort, it's too massive to be easily readable. In this case, it's better to print a markdown table and then just read it in a markdown editor. (Once this PR is merged, the kani list workflow step will use the markdown option).

Resolves #3632, #3633

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 and MIT licenses.

[zhassan-aws]

Looks good. Can we add a test (or update an existing one) to check that the json file is printed in the output?

Similarly for the markdown table?

[celinval]

Please add tests as @zhassan-aws mentioned.

[celinval]

Please check if not quiet

[celinval]

Nit: Can you please move this function to the top? This is the entry point of this module, so it's easier to read the code from it.