Update user model api in example app

Author: shepherd-l

com.onesignal.unity.ios/Editor/BuildPostProcessor.cs

@@ -62,15 +62,17 @@
 using UnityEditor.iOS.Xcode.Extensions;
 using Debug = UnityEngine.Debug;
 
-namespace OneSignalSDK {
+using UnityEditor.Callbacks;
+
+namespace OneSignalSDKNew.iOS {
     /// <summary>
     /// Adds required frameworks to the iOS project, and adds the OneSignalNotificationServiceExtension. Also handles
     /// making sure both targets (app and extension service) have the correct dependencies
     /// </summary>
     public class BuildPostProcessor : IPostprocessBuildWithReport {
         private const string ServiceExtensionTargetName = "OneSignalNotificationServiceExtension";
         private const string ServiceExtensionFilename = "NotificationService.swift";
-        private const string DependenciesFilename = "OneSignalIOSDependencies.xml";
+        private const string DependenciesFilename = "OneSignaliOSDependencies.xml";
         private const string PackageName = "com.onesignal.unity.ios";
 
         private static readonly string EditorFilesPath = Path.Combine("Packages", PackageName, "Editor");

com.onesignal.unity.ios/Editor/OneSignalIOSDependencies.xml

@@ -28,7 +28,7 @@
 #if UNITY_IOS
 using UnityEditor.iOS.Xcode;
 
-namespace OneSignalSDK {
+namespace OneSignalSDKNew.iOS {
     public static class PBXProjectExtensions {
     #if UNITY_2019_3_OR_NEWER
         public static string GetMainTargetName(this PBXProject project)