ImageIO iOS xcode16.0 b4

#ImageIO.framework https://github.com/xamarin/xamarin-macios/pull/21136

diff -ruN /Applications/Xcode_16.0.0-beta3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ImageIO.framework/Headers/CGImageSource.h /Applications/Xcode_16.0.0-beta4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ImageIO.framework/Headers/CGImageSource.h
--- /Applications/Xcode_16.0.0-beta3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ImageIO.framework/Headers/CGImageSource.h	2024-06-28 23:07:53
+++ /Applications/Xcode_16.0.0-beta4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/ImageIO.framework/Headers/CGImageSource.h	2024-07-16 00:30:03
@@ -245,6 +245,10 @@
 IMAGEIO_EXTERN const CFStringRef kCGImageSourceDecodeToHDR      IMAGEIO_AVAILABLE_STARTING(14.0, 17.0, 17.0, 10.0);
 IMAGEIO_EXTERN const CFStringRef kCGImageSourceDecodeToSDR      IMAGEIO_AVAILABLE_STARTING(14.0, 17.0, 17.0, 10.0);
 
+/* kCGImageSourceGenerateImageSpecificLumaScaling - generate a global tone mapping function based on the gain map. Dafault value is "YES" (kCFBooleanTrue)
+ */
+IMAGEIO_EXTERN const CFStringRef kCGImageSourceGenerateImageSpecificLumaScaling      IMAGEIO_AVAILABLE_STARTING(15.0, 18.0, 18.0, 11.0);
+
 /* kCGImageSourceDecodeRequestOptions - CFDictionaryRef to specify additional options
  */
 IMAGEIO_EXTERN const CFStringRef kCGImageSourceDecodeRequestOptions     IMAGEIO_AVAILABLE_STARTING(14.0, 17.0, 17.0, 10.0);