[Feature]Add "Mark as default" in the Project Tasks/project/General menu tree

[volkmarnissen]

I am working with native and platform specific unit tests.

I was not able to find out how to configure the debugging configuration to get it working with native tests, because the configuration will be overwritten by platformio.

After one day of research I found the mark as default feature.

If you want to debug native unit tests, you need to mark as default the native environment in PIO Home/Projects&Configuration.

Please add a menu item "Mark as default" at Project Tasks/_project_/General. A more intuitive naming for "Mark as default" would also be helpful E.g. "Use for Debugging/Syntax highlighting" .

It would even be nicer if one could use the unit test view in vscode to start debugging a selected unit test. But may be this is more difficult, because different unit test may require different environments.