Adding slugify parameter transform (#185)

* Adding slugify parameter transform

Fixes #172

* Cleaning up code

And slugifying my orders

src/Web/SlugifyParameterTransformer.cs

@@ -0,0 +1,17 @@
+using Microsoft.AspNetCore.Routing;
+using System.Text.RegularExpressions;
+
+namespace Microsoft.eShopWeb.Web
+{
+
+    public class SlugifyParameterTransformer : IOutboundParameterTransformer
+    {
+        public string TransformOutbound(object value)
+        {
+            if (value == null) { return null; }
+
+            // Slugify value
+            return Regex.Replace(value.ToString(), "([a-z])([A-Z])", "$1-$2").ToLower();
+        }
+    }
+}