Netcore3.0 (#323)

* Updates based on documentation

* Getting the build passing

* Getting app functioning

* A few cleanups to confirm it's working as expected

* Fixing functional tests

* Updating dockerfile for 3.0

* Functional Tests now run sequentially

* Updating to latest version of moq

* Adding migration for post 3.0 upgrades

* Removing commented out lines

* Moving address and catalogitemordered configuration in to classes that own them

* Minor cleanups

src/Web/Program.cs

@@ -1,9 +1,9 @@
-using Microsoft.AspNetCore;
-using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.eShopWeb.Infrastructure.Data;
 using Microsoft.eShopWeb.Infrastructure.Identity;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Threading.Tasks;
@@ -14,7 +14,7 @@ namespace Microsoft.eShopWeb.Web
     {
         public async static Task Main(string[] args)
         {
-            var host = CreateWebHostBuilder(args)
+            var host = CreateHostBuilder(args)
                         .Build();
 
             using (var scope = host.Services.CreateScope())
@@ -39,8 +39,11 @@ namespace Microsoft.eShopWeb.Web
             host.Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+            .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
     }
 }