Provide extra options to `--list-tests`

[Evangelink]

Summary

The current --list-tests option is too static and only provide really few informations about the tests. It's also incompatible with extensions while some could have some sense.

Here are some examples of improvements that could be done:

• Display full test info instead of only display name
• Group displayed tests by [grouping] (e.g. namespaces, classes, subclasses...)
• Provide TRX with all tests as not executed

Originally posted by Marco Rossignoli (@MarcoRossignoli) in https://github.com/microsoft/testanywhere/issues/1266

[nohwnd]

dotnet/sdk#39957 might be worth adding a machine readable listing to the list of features.

[Lorilatschki]

Is there any progress on this? We would like to use the json/plain output written to a defined filepath in our CI.

[nohwnd]

There is no progress, our team resources are very limited these days, so we were not able to work on this. Nor do we have a plan when to address this.

[Lorilatschki]

Are community contributions welcome? If so, I would provide a PR for that.