Converts FeatureAuthorize to authz policy

src/Umbraco.Web.Common/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,22 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.Extensions.DependencyInjection;
+using Umbraco.Web.BackOffice.Authorization;
+using Umbraco.Web.Common.Authorization;
+
+namespace Umbraco.Extensions
+{
+    public static class ServiceCollectionExtensions
+    {
+        public static void AddUmbracoCommonAuthorizationPolicies(this IServiceCollection services)
+        {
+            services.AddSingleton<IAuthorizationHandler, FeatureAuthorizeHandler>();
+
+            services.AddAuthorization(options =>
+            {
+                options.AddPolicy(AuthorizationPolicies.UmbracoFeatureEnabled, policy =>
+                    policy.Requirements.Add(new FeatureAuthorizeRequirement()));
+            });
+        }
+    }
+
+}