Renames project: Umbraco.ModelsBuilder.Embedded and namespaces since we need a different assembly, updates nuspec, changes file path of MB app_plugins

src/Umbraco.ModelsBuilder.Embedded/ApiVersion.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Reflection;
+using Semver;
+
+namespace Umbraco.ModelsBuilder.Embedded
+{
+    /// <summary>
+    /// Manages API version handshake between client and server.
+    /// </summary>
+    public class ApiVersion
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiVersion"/> class.
+        /// </summary>
+        /// <param name="executingVersion">The currently executing version.</param>
+        /// <exception cref="ArgumentNullException"></exception>
+        internal ApiVersion(SemVersion executingVersion)
+        {
+            Version = executingVersion ?? throw new ArgumentNullException(nameof(executingVersion));
+        }
+
+        private static SemVersion CurrentAssemblyVersion
+            => SemVersion.Parse(Assembly.GetExecutingAssembly().GetCustomAttribute<AssemblyInformationalVersionAttribute>().InformationalVersion);
+
+        /// <summary>
+        /// Gets the currently executing API version.
+        /// </summary>
+        public static ApiVersion Current { get; }
+            = new ApiVersion(CurrentAssemblyVersion);
+
+        /// <summary>
+        /// Gets the executing version of the API.
+        /// </summary>
+        public SemVersion Version { get; }
+    }
+}