further refactor base/rest service into Umbraco.Web

src/Umbraco.Web/BaseRest/RestExtensionAttribute.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Umbraco.Web.BaseRest
+{
+	[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
+	public class RestExtensionAttribute : Attribute
+	{
+		public string Alias { get; private set; }
+
+		public RestExtensionAttribute(string alias)
+		{
+			this.Alias = alias;
+		}
+	}
+}