Reapply "8.2版本上传"

This reverts commit e9af7221de.

Assets/01.HybridCLR/Editor/3rds/UnityFS/Header.cs

@@ -0,0 +1,14 @@
+namespace UnityFS
+{
+    public class Header
+    {
+        public string signature;
+        public uint version;
+        public string unityVersion;
+        public string unityRevision;
+        public long size;
+        public uint compressedBlocksInfoSize;
+        public uint uncompressedBlocksInfoSize;
+        public ArchiveFlags flags;
+    }
+}