update AssetInfo

Assets/YooAsset/Runtime/ResourcePackage/AssetInfo.cs

@@ -125,6 +125,19 @@ namespace YooAsset
             }
         }
 
+        /// <summary>
+        /// 资源标签集合
+        /// </summary>
+        public PackageTags Tags
+        {
+            get
+            {
+                if (_packageAsset == null)
+                    return PackageTags.Empty;
+                return _packageAsset.Tags;
+            }
+        }
+
         /// <summary>
         /// 创建有效的资源信息实例
         /// </summary>

Assets/YooAsset/Runtime/ResourcePackage/PackageManifestConsts.cs

@@ -22,8 +22,8 @@ namespace YooAsset
         public const int FileVersion = 2;
 
         /// <summary>
-        /// 文件最小合法大小（39字节）
+        /// 文件最小合法大小（41字节）
         /// </summary>
-        public const int MinFileSize = 39;
+        public const int MinFileSize = 41;
     }
 }

Assets/YooAsset/Runtime/ResourcePackage/PackageTags.cs

@@ -7,6 +7,11 @@ namespace YooAsset
     /// </summary>
     public class PackageTags
     {
+        /// <summary>
+        /// 空标签集合
+        /// </summary>
+        public static readonly PackageTags Empty = new PackageTags(Array.Empty<string>());
+
         private readonly string[] _tags;
 
         /// <summary>