Standardize namespaces to all be under the Microsoft.eShopOnWeb namespace and update default namespaces. (#102)

src/Web/ViewModels/Manage/EnableAuthenticatorViewModel.cs

@@ -1,7 +1,7 @@
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 
-namespace Microsoft.eShopWeb.ViewModels.Manage
+namespace Microsoft.eShopWeb.Web.ViewModels.Manage
 {
     public class EnableAuthenticatorViewModel
     {