Add method-level test filtering support to JUnitRunner

[jakobcodes]

Description

This PR enhances the JUnitRunner by adding support for method-level test filtering. The implementation allows for more granular control over test execution by enabling filtering of individual test methods, rather than just entire test suites.

Changes

• Added method-level filtering capability to JUnitRunner
• Introduced excludedTests tracking mechanism for filtered test methods
• Implemented filter logic using ScalaTest's tagging system

Implementation Details

• Uses a mutable Set to track excluded test methods
• Leverages ScalaTest's DynaTags for runtime test filtering
• Properly handles empty test scenarios with NoTestsRemainException

[cla-bot]

Hi @jakobcodes, we require contributors to sign our Contributor License Agreement, and we don't have yours on file. In order for us to review and merge your code, please access https://www.artima.com/cla/choose-type to sign our Contributor License Agreement. Your effort is highly appreciated. Thank you.

[artimasites]

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[MajaSt1]

Hi @cheeseng, when you have a chance, it would be great if you could review the changes in this PR 🥇

[SethTisue]

oooooohh, this looks really appealing

[cheeseng]

Hi @jakobcodes , @MajaSt1 @SethTisue , sorry somehow I missed this one, overall I think the PR looks fine, with possible minor improvement I would suggest:

• May use AtomicReference for mutable.Set
• May use tag name "org.scalatest.Selected" instead of "Included".

Sorry again for missing this one, let's request @bvenners to review for approval.

[cla-bot]

Hi @MajaSt1, we require contributors to sign our Contributor License Agreement, and we don't have yours on file. In order for us to review and merge your code, please access https://www.artima.com/cla/choose-type to sign our Contributor License Agreement. Your effort is highly appreciated. Thank you.

[artimasites]

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