Netcore: Cleanup and migrate few classes from Umbraco.Web (#9375)

* Migrated a few classes, and cleaned up by removing some old classs too in the Umbraco.Web Project

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

* Migrated a few classes, and cleaned up by removing some old classs too in the Umbraco.Web Project

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

* Moved SurfaceControllerTypeCollection + Builder

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

* Moved Extension methods

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

* Removed Wrap methods.. People should use their own TagBuilder

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

src/Umbraco.Web.BackOffice/Controllers/ContentController.cs

@@ -131,7 +131,7 @@ namespace Umbraco.Web.BackOffice.Controllers
         /// </summary>
         /// <returns></returns>
         [HttpGet]
-        [UmbracoAuthorize, OverrideAuthorization]
+        [UmbracoBackOfficeAuthorize, OverrideAuthorization]
         public bool AllowsCultureVariation()
         {
             var contentTypes = _contentTypeService.GetAll();