update revert patch and bitcode setting

engine/Build.bee.cs

 using Bee.Toolchain.GNU;
 using Bee.Toolchain.IOS;
 using System.Diagnostics;
+using System.IO;
 
 enum UIWidgetsBuildTargetPlatform
 {
     static void Main()
     {
         flutterRoot = Environment.GetEnvironmentVariable("FLUTTER_ROOT_PATH");
+
+        try
+        {
+            using (StreamReader sr = new StreamReader("Scripts/bitcode.conf"))
+            {
+                string line;
+                if ((line = sr.ReadLine()) != null)
+                {
+                    if(line.Trim() == "true")
+                    {
+                        ios_bitcode_enabled = true;
+                    }
+                    else
+                    {
+                        ios_bitcode_enabled = false;
+                    }
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e.Message);
+        }
+
+
+
         if (string.IsNullOrEmpty(flutterRoot))
         {
             flutterRoot = Environment.GetEnvironmentVariable("USERPROFILE") + "/engine/src";
     //this setting is disabled by default, don't change it unless you know what you are doing
     //it must be set the same as the settings we choose to build the flutter txt library
     //refer to the readme file for the details
-    private static bool ios_bitcode_enabled = false;
+    private static bool ios_bitcode_enabled = true;
 
     static NativeProgram SetupLibUIWidgets(UIWidgetsBuildTargetPlatform platform, out List<NPath> dependencies_d, out List<NPath> dependencies_r)
     {

engine/Scripts/full_build.sh

     ;;
     "mac")  ./lib_build_mac.sh -m $runtime_mode -r $engine_path
     ;;
-    "windows")  echo 'You select windows'
+    "windows")  python3 lib_build_win.py -m $runtime_mode -r $engine_path
     ;;
     *)  echo "unknown platform, only support \"android\",\"ios\",\"mac\",\"windows\""
     ;;

engine/Scripts/lib_build_ios.sh

   mkdir $engine_path
 fi
 
+if [ "$bitcode" == "-bitcode_bundle -bitcode_verify" ];
+then
+  echo "true" > bitcode.conf
+else
+echo "false" > bitcode.conf
+fi
+
 if [ "$runtime_mode" == "release" ];
 then
   optimize=""
 tundra_file="$work_path/../artifacts/tundra.dag.json"
 python3 Scripts/prelink.py $tundra_file $runtime_mode $output_path $work_path $bitcode
 
-echo "\nRevert patches..."
-cd $FLUTTER_ROOT_PATH/flutter/third_party/txt
-patch -R < BUILD.gn.patch
-
-cd $FLUTTER_ROOT_PATH/build/mac
-patch -R < find_sdk.patch

engine/Scripts/lib_build_win.py

     os.system("patch -R < BUILD.gn.patch")
     
     os.chdir(flutter_root_path + "/third_party/angle")
-    os.system("patch -R < BUILD.gn.patch -N")
+    os.system("patch -R < BUILD.gn.patch")
 
     os.chdir(flutter_root_path + "/third_party/angle/src/libANGLE/renderer/d3d/d3d11/")
     os.system("patch -R < cpp.patch")

engine/Scripts/prelink.py

         os.system('\"' + xcode_path + '/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip" -x "libUIWidgets.a"')
         os.system('cp -r libUIWidgets.a ' + '../com.unity.uiwidgets/Runtime/Plugins/ios/libUIWidgets.a')
 
+
+def revert_patches(work_path):
+    print("\nRevert patches...")
+    flutter_root_path = os.environ['FLUTTER_ROOT_PATH']
+    os.chdir(flutter_root_path + "/flutter/third_party/txt")
+    os.system("patch -R < BUILD.gn.patch")
+    
+    os.chdir(flutter_root_path + "/build/mac")
+    os.system("patch -R < find_sdk.patch")
+
+    os.chdir(work_path)
+    if os.path.exists(work_path + "/bitcode.conf"):
+        os.remove("bitcode.conf")
+
+    work_path = sys.argv[4]
+
-        prelinkfiles(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5])
+        prelinkfiles(sys.argv[1], sys.argv[2], sys.argv[3], work_path, sys.argv[5])
-        prelinkfiles(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], "")
+        prelinkfiles(sys.argv[1], sys.argv[2], sys.argv[3], work_path, "")
+    
+    revert_patches(work_path)