Update basic sample

Assets/YooAsset/Samples~/Basic Sample/GameScript/Runtime/FileStream.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using UnityEngine;
+
+public class BundleStream : FileStream
+{
+    public const byte KEY = 64;
+    
+    public BundleStream(string path, FileMode mode, FileAccess access, FileShare share, int bufferSize, bool useAsync) : base(path, mode, access, share, bufferSize, useAsync)
+    {
+    }
+    public BundleStream(string path, FileMode mode) : base(path, mode)
+    {
+    }
+
+    public override int Read(byte[] array, int offset, int count)
+    {
+        var index = base.Read(array, offset, count);
+        for (int i = 0; i < array.Length; i++)
+        {
+            array[i] ^= KEY;
+        }
+        return index;
+    }
+}