[Accessibility] Complete the binding for xcode 15.

src/Accessibility/AXPrefers.cs

@@ -0,0 +1,24 @@
+#nullable enable
+
+using System;
+using System.Runtime.InteropServices;
+using CoreGraphics;
+using Foundation;
+using ObjCRuntime;
+
+namespace Accessibility {
+
+	// accessibility.cs already provide the following attributes on the type
+	// [Watch (10, 0), TV (17, 0), Mac (14, 0), iOS (17, 0), MacCatalyst (17, 0)]
+	public static partial class AXPrefers {
+
+		[DllImport (Constants.AccessibilityLibrary)]
+		static extern byte AXPrefersHorizontalTextLayout ();
+
+		public static bool HorizontalTextEnabled ()
+		{
+			return AXPrefersHorizontalTextLayout () != 0;
+		}
+
+	}
+}

src/accessibility.cs

@@ -352,4 +352,14 @@ partial interface AXAnimatedImagesUtilities {
 		[Field ("AXAnimatedImagesEnabledDidChangeNotification")]
 		NSString AnimatedImagesEnabledDidChangeNotification { get; }
 	}
+
+	[Watch (10, 0), TV (17, 0), Mac (14, 0), iOS (17, 0), MacCatalyst (17, 0)]
+	[Static]
+	[Partial]
+	partial interface AXPrefers {
+		[Notification]
+		[Field ("AXPrefersHorizontalTextLayoutDidChangeNotification")]
+		NSString HorizontalTextLayoutDidChangeNotification { get; }
+	}
+
 }

src/frameworks.sources

@@ -35,6 +35,7 @@ ACCELERATE_SOURCES = \
 ACCESSIBILITY_SOURCES = \
 	Accessibility/AXHearingUtilities.cs \
 	Accessibility/AXAnimatedImagesUtilities.cs \
+	Accessibility/AXPrefers.cs \
 
 # Accounts