refactor the runtime code

重构了运行时代码，支持全新的文件系统。

Assets/YooAsset/Runtime/OperationSystem/OperationSystem.cs

@@ -112,7 +112,7 @@ namespace YooAsset
             // 终止临时队列里的任务
             foreach (var operation in _newList)
             {
-                if (operation.PackageName == packageName)
+                if (operation.GetPackageName() == packageName)
                 {
                     operation.SetAbort();
                 }
@@ -121,7 +121,7 @@ namespace YooAsset
             // 终止正在进行的任务
             foreach (var operation in _operations)
             {
-                if (operation.PackageName == packageName)
+                if (operation.GetPackageName() == packageName)
                 {
                     operation.SetAbort();
                 }
@@ -137,14 +137,5 @@ namespace YooAsset
             operation.SetPackageName(packageName);
             operation.SetStart();
         }
-
-        /// <summary>
-        /// 开始处理异步操作类
-        /// </summary>
-        public static void StartOperation(AsyncOperationBase operation)
-        {
-            _newList.Add(operation);
-            operation.SetStart();
-        }
     }
 }