NetCore: MSDI refactor remove IFactory & IRegister (#9308)

* Replace IFactory with IServiceProvider

* Replace IRegister with IServiceCollection

* Fix Rte.cshtml so the view can service locate.

* Replace Composing Lifetime with MSDI ServiceLifetime

* Remove ServiceProvider AddMultipleUnique extension

* Remove Umbraco.Web.Composing.Current.Reset and any calls

* Remove LightInject from net framework projects

* Brought back a helper for setting MediaFileSystem underlying IFileSystem

src/Umbraco.TestData/LoadTestController.cs

@@ -10,6 +10,7 @@ using System.Web.Routing;
 using System.Diagnostics;
 using Umbraco.Core.Composing;
 using System.Configuration;
+using Microsoft.Extensions.DependencyInjection;
 using Umbraco.Core.Strings;
 
 // see https://github.com/Shazwazza/UmbracoScripts/tree/master/src/LoadTesting
@@ -368,7 +369,7 @@ namespace Umbraco.TestData
             if (ConfigurationManager.AppSettings["Umbraco.TestData.Enabled"] != "true")
                 return;
 
-            composition.Register(typeof(LoadTestController), Lifetime.Request);
+            composition.Services.AddScoped(typeof(LoadTestController));
         }
     }
 }