Adding Razor Pages Version (#60)

* In progress copying code into new RP project
Cleaning up namespaces and whitespace in original Web project

* Cleaning up some more namespaces

* Removing unused page.

* Index page loads correctly.

* Fixing up paging.

* Moving views; getting ready to convert to RPs

* Auto stash before merge of "master" and "origin/master"

Basket and Checkout pages wired up

* WIP on Account pages

* Working on signin/signout

* Working on auth

* Getting order history working
Fixing auth bug

* Fixing Checkout issue

* Fixing link

src/Web/Controllers/AccountController.cs

@@ -5,9 +5,9 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Infrastructure.Identity;
 using System;
-using ApplicationCore.Interfaces;
 using Web;
 using Microsoft.AspNetCore.Authentication;
+using Microsoft.eShopWeb.Interfaces;
 
 namespace Microsoft.eShopWeb.Controllers
 {
@@ -37,7 +37,7 @@ namespace Microsoft.eShopWeb.Controllers
 
             ViewData["ReturnUrl"] = returnUrl;
             if (!String.IsNullOrEmpty(returnUrl) && 
-                returnUrl.ToLower().Contains("checkout"))
+                returnUrl.IndexOf("checkout", StringComparison.OrdinalIgnoreCase) >= 0)
             {
                 ViewData["ReturnUrl"] = "/Basket/Index";
             }