Allow the exclusion of files in the `.vscode/` directory to be
overridden via negated patterns (gitignore patterns beginning with `!`)
by changing the pattern in `.gitignore` from `.vscode/` to `.vscode/*`
(i.e., by ignoring the files in `.vscode/` rather than the `.vscode/`
directory itself).
Add a minimal, ready-to-use Hytale plugin template including Gradle build scripts, GitHub Actions CI workflow, example plugin class, configuration and manifest files, and supporting documentation. This setup provides modern build tooling, automated server testing, and best practices for plugin development.