Netcore: Migration of Model classes from Umbraco.Infrastructure to Core (#9404)

* Migrating more model, mapping and tree classes

* Migrating files from Mapping dir without Newtonsoft dependency

* Migrating files from PublishedContent and Editors dirs without Newtonsoft dependency + some more of the same kind

* Migrating DataType class without the usage of Newtonsoft.Json and making the corresponding changes to all classes affected

* Combining 3 ContentExtensions files into 1

* Refactoring from migrating ContentExtensions

* Migrating more classes

* Migrating ContentRepositoryExtensions - combining it with existing file in Umbraco.Core

* removing Newtonsoft json dependency & migrating file. Adding partial migration of ConfigurationEditor, so PropertyTagsExtensions can be migrated

* Migrating ContentTagsExtensions, and refactoring from changes in PropertyTagsExtensions

* Changes that should be reverted once ConfigurationEditor class is fully migrated

* VS couldn't find Composing, so build was failing. Removing the using solves the problem

* Handling a single case for deserializing a subset of an input

* Small changes and added tests to JsonNetSerializer

Signed-off-by: Bjarke Berg <mail@bergmania.dk>

* Migrated ConfigurationEditor

Signed-off-by: Bjarke Berg <mail@bergmania.dk>

Co-authored-by: Bjarke Berg <mail@bergmania.dk>

src/Umbraco.Core/Models/PublishedContent/PublishedContentExtensionsForModels.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace Umbraco.Core.Models.PublishedContent
+{
+
+    /// <summary>
+    /// Provides strongly typed published content models services.
+    /// </summary>
+    public static class PublishedContentExtensionsForModels
+    {
+        /// <summary>
+        /// Creates a strongly typed published content model for an internal published content.
+        /// </summary>
+        /// <param name="content">The internal published content.</param>
+        /// <returns>The strongly typed published content model.</returns>
+        public static IPublishedContent CreateModel(this IPublishedContent content, IPublishedModelFactory publishedModelFactory)
+        {
+            if (publishedModelFactory == null) throw new ArgumentNullException(nameof(publishedModelFactory));
+            if (content == null)
+                return null;
+
+            // get model
+            // if factory returns nothing, throw
+            var model = publishedModelFactory.CreateModel(content);
+            if (model == null)
+                throw new InvalidOperationException("Factory returned null.");
+
+            // if factory returns a different type, throw
+            if (!(model is IPublishedContent publishedContent))
+                throw new InvalidOperationException($"Factory returned model of type {model.GetType().FullName} which does not implement IPublishedContent.");
+
+            return publishedContent;
+        }
+    }
+}