Ported progress from SPA and began scaffolding Identity UI.

Laid some groundwork in backend.

Began customizing Identity UI.

Props/Services/Content/IContentManager.cs

@@ -0,0 +1,7 @@
+namespace Props.Services.Content
+{
+    public interface IContentManager<out TModel>
+    {
+        dynamic Json { get; }
+    }
+}