Feature/2892

[Zegveld]

• Merge main branch and fix moved imports. (Periodically needed)
• Write in the README.md how to use the testutils in other modules.
• Stop passing the configuration interface along and have the static retrieval method cache the action.
• Make what the methods on the configuration interface are used for more obvious with javadoc and renaming.
• Move to another repository. (Finishing action)

closes #2892

[filiphr]

This would ideally be in a new project under a new organization. It doesn't fit well with what MapStruct is doing.

Anyways, the move to a dedicated non publishable module is a good step to separate it more from MapStruct.

What I would suggest in order to avoid a lot of changes is to limit certain things for now.

• IssueKey should not be moved
• WithJakartaInject, WithJavaxInject, WithJavaxJaxb, WithJoda, WithJoda should not be moved. They are all meta annotations for WithTestDependency.
• For easier review, I would also suggest if possible to do everything in the current packages and add new things that are need. e.g. the ProjectTestConfiguration
• Seems like checkstyle should be an optional dependency as well

I haven't done a thorough analysis of this yet though

[Zegveld]

The diff should be a lot better now. The reverted changes were all import updates, because of moved items.