adding initial project and solution files

src/Web/ViewModels/CatalogIndex.cs

@@ -0,0 +1,16 @@
+using Microsoft.eShopWeb.Models;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using System.Collections.Generic;
+
+namespace Microsoft.eShopWeb.ViewModels
+{
+    public class CatalogIndex
+    {
+        public IEnumerable<CatalogItem> CatalogItems { get; set; }
+        public IEnumerable<SelectListItem> Brands { get; set; }
+        public IEnumerable<SelectListItem> Types { get; set; }
+        public int? BrandFilterApplied { get; set; }
+        public int? TypesFilterApplied { get; set; }
+        public PaginationInfo PaginationInfo { get; set; }
+    }
+}