Added async /save command for admins+ and server console.

Redesigned TorchBase.SaveGameAsync to take a callback function for error/success handling. Also removed local host checks as we are hosting a dedicated server.

Torch.API/ITorchBase.cs

@@ -25,6 +25,7 @@ namespace Torch.API
         bool IsOnGameThread();
         void Start();
         void Stop();
+        void Save(long callerId);
         void Init();
         T GetManager<T>() where T : class, IManager;
     }