replace counter by specific query to avoid load each items in memory (#611)

* replace counter by specific query to avoid load each items in memory

* Create IBasketQueryService

src/Web/Configuration/ConfigureCoreServices.cs

@@ -13,13 +13,12 @@ namespace Microsoft.eShopWeb.Web.Configuration
         public static IServiceCollection AddCoreServices(this IServiceCollection services,
             IConfiguration configuration)
         {
-            //services.AddScoped(typeof(IAsyncRepository<>), typeof(EfRepository<>));
             services.AddScoped(typeof(IReadRepository<>), typeof(EfRepository<>));
             services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));
 
             services.AddScoped<IBasketService, BasketService>();
             services.AddScoped<IOrderService, OrderService>();
-            //services.AddScoped<IOrderRepository, OrderRepository>();
+            services.AddScoped<IBasketQueryService, BasketQueryService>();
             services.AddSingleton<IUriComposer>(new UriComposer(configuration.Get<CatalogSettings>()));
             services.AddScoped(typeof(IAppLogger<>), typeof(LoggerAdapter<>));
             services.AddTransient<IEmailSender, EmailSender>();