Gets view paths to load in dynamically based on whether a core or plugin tree is rendering, this allows us to store view files based on conventions for packages. Completes: U4-2849 Ensure editor views, etc... can exist outside of the /umbraco folder for package devs

src/Umbraco.Web/Trees/ContentTreeController.cs

@@ -22,6 +22,7 @@ namespace Umbraco.Web.Trees
     [LegacyBaseTree(typeof(loadContent))]
     [Tree(Constants.Applications.Content, Constants.Trees.Content, "Content")]
     [PluginController("UmbracoTrees")]
+    [CoreTree]
     public class ContentTreeController : ContentTreeControllerBase
     {
         protected override TreeNode CreateRootNode(FormDataCollection queryStrings)