Add some Admin Commands, set default 'Command not found'-message

Main.cs

@@ -8,6 +8,7 @@ namespace reallife_gamemode
         [ServerEvent(Event.ResourceStart)]
         public void OnResourceStart()
         {
+            NAPI.Server.SetCommandErrorMessage("~r~[FEHLER]~s~ Dieser Command existiert nicht.");
             NAPI.Util.ConsoleOutput("reallife-gamemode resource loaded!");
         }
     }