update editor assembly

Assets/YooAsset/Editor/Assembly/MacroDefine.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+
+namespace YooAsset.Editor
+{
+    public class MacroDefine
+    {
+        /// <summary>
+        /// YooAsset版本宏定义
+        /// </summary>
+        public static readonly List<string> Macros = new List<string>()
+        {
+            "YOO_ASSET_2",
+            "YOO_ASSET_2_3",
+            "YOO_ASSET_2_3_OR_NEWER",
+        };
+    }
+}