Implements Public Access in netcore (#10137)

* Getting new netcore PublicAccessChecker in place

* Adds full test coverage for PublicAccessChecker

* remove PublicAccessComposer

* adjust namespaces, ensure RoleManager works, separate public access controller, reduce content controller

* Implements the required methods on IMemberManager, removes old migrated code

* Updates routing to be able to re-route, Fixes middleware ordering ensuring endpoints are last, refactors pipeline options, adds public access middleware, ensures public access follows all hops

* adds note

* adds note

* Cleans up ext methods, ensures that members identity is added on both front-end and back ends. updates how UmbracoApplicationBuilder works in that it explicitly starts endpoints at the time of calling.

* Changes name to IUmbracoEndpointBuilder

* adds note

* Fixing tests, fixing error describers so there's 2x one for back office, one for members, fixes TryConvertTo, fixes login redirect

* fixing build

* Fixes keepalive, fixes PublicAccessMiddleware to not throw, updates startup code to be more clear and removes magic that registers middleware.

* adds note

* removes unused filter, fixes build

* fixes WebPath and tests

* Looks up entities in one query

* remove usings

* Fix test, remove stylesheet

* Set status code before we write to response to avoid error

* Ensures that users and members are validated when logging in. Shares more code between users and members.

* Fixes RepositoryCacheKeys to ensure the keys are normalized

* oops didn't mean to commit this

* Fix casing issues with caching, stop boxing value types for all cache operations, stop re-creating string keys in DefaultRepositoryCachePolicy

* bah, far out this keeps getting recommitted. sorry

Co-authored-by: Bjarke Berg <mail@bergmania.dk>

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

@@ -188,6 +188,10 @@ namespace Umbraco.Cms.Web.BackOffice.Controllers
                             "contentApiBaseUrl", _linkGenerator.GetUmbracoApiServiceBaseUrl<ContentController>(
                                 controller => controller.PostSave(null))
                         },
+                        {
+                            "publicAccessApiBaseUrl", _linkGenerator.GetUmbracoApiServiceBaseUrl<PublicAccessController>(
+                                controller => controller.GetPublicAccess(0))
+                        },
                         {
                             "mediaApiBaseUrl", _linkGenerator.GetUmbracoApiServiceBaseUrl<MediaController>(
                                 controller => controller.GetRootMedia())