Add GitHub plugin updater, refactor game update hook to TorchBase instead of PluginManager, fix world config not applying

Torch.Server/ServerStatistics.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Torch.Collections;
+
+namespace Torch.Server
+{
+    public class ServerStatistics
+    {
+        public RollingAverage SimSpeed { get; } = new RollingAverage(30);
+    }
+}