Initial commit: Arena plugin for Minecraft 1.21.1 with lobby system

.gitignore

@@ -0,0 +1,25 @@
+# Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+
+# IDE
+.idea/
+*.iml
+*.iws
+*.ipr
+.vscode/
+.settings/
+.project
+.classpath
+
+# OS
+.DS_Store
+Thumbs.db