Enable to have a Complete Folder as Scope

[emuguy1]

User story

1. As a develoepr using our plugin
2. I want / need to also select a complete folder/package for a run
3. So that it can also run the Mutation Tests on them

Acceptance criteria

• Rightclicking on a package/folder opens a contextmenu option, allowing to run a mutationtest there
• Runs are executed for all classes in folder/package that are usable for a mutation test Pitest run

Definition of done (DoD)

• All acceptance criteria are met.
• Work products are uploaded to the GitHub repository.
• A pull request is created for each related branch.
• The work products in the pull requests are reviewed.
• GitHub CI Workflow passes for the branches
• The corresponding branches are merged and closed.
• The bill of materials section of the planning documents is updated.
• Tests are written for the added features, if suitable

DoD general criteria

• Feature has been fully implemented
• Feature has been merged into the mainline
• All acceptance criteria were met
• Product owner approved features
• All tests are passing
• Developers agreed to release