Convert GameServer to Kotlin

game/src/main/java/dev/openrs2/game/GameServer.java

@@ -1,6 +0,0 @@
-package dev.openrs2.game;
-
-public final class GameServer {
-	public static void main(String[] args) {
-	}
-}

game/src/main/java/dev/openrs2/game/GameServer.kt

@@ -0,0 +1,7 @@
+package dev.openrs2.game
+
+object GameServer {
+    @JvmStatic
+    fun main(args: Array<String>) {
+    }
+}