Support adding run configs in folders

[dexman545]

Adds support for adding run configs in folders within Idea.

Adds a test run config that is placed in a folder.

neoforge {
  runs {
    folderedClient {
       client()
       ideFolderName = "Neo Test Folder"
    }
  }
}

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

[Technici4n]

Thanks!

[neoforged-releases]

🚀 This PR has been released as ModDevGradle version 2.0.134.