MessageUI iOS xcode16.0 b1

#MessageUI.framework https://github.com/xamarin/xamarin-macios/pull/20892

diff -ruN /Applications/Xcode_15.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MFMailComposeControllerDeferredAction.h /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MFMailComposeControllerDeferredAction.h
--- /Applications/Xcode_15.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MFMailComposeControllerDeferredAction.h	1970-01-01 01:00:00
+++ /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MFMailComposeControllerDeferredAction.h	2024-05-31 09:01:40
@@ -0,0 +1,14 @@
+//
+//  MFMailComposeControllerDeferredAction.h
+//  MessageUI
+//
+//  Copyright © 2023 Apple Inc. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+typedef NS_ENUM(NSInteger, MFMailComposeControllerDeferredAction) {
+    MFMailComposeControllerDeferredActionNone,
+    MFMailComposeControllerDeferredActionAdjustInsertionPoint,
+    MFMailComposeControllerDeferredActionAddMissingRecipients,
+};
diff -ruN /Applications/Xcode_15.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MessageUI.h /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MessageUI.h
--- /Applications/Xcode_15.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MessageUI.h	2024-04-19 10:33:27
+++ /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/MessageUI.framework/Headers/MessageUI.h	2024-05-31 09:01:40
@@ -7,5 +7,6 @@
  */
 
 
+#import <MessageUI/MFMailComposeControllerDeferredAction.h>
 #import <MessageUI/MFMailComposeViewController.h>
 #import <MessageUI/MFMessageComposeViewController.h>