Wrap FluentAvalonia controls within same named classes allowing us to declare the xmlns namespace in our assembly

Framework/Foundation/Templates/ITemplateDescriptor.cs

@@ -0,0 +1,15 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Toolkit.Foundation
+{
+    public interface ITemplateDescriptor
+    {
+        Type ContentType { get; }
+
+        ServiceLifetime Lifetime { get; }
+
+        string? Name { get; }
+
+        Type TemplateType { get; }
+    }
+}