Moved PublicKey into correct folder

Octokit/Models/Response/PublicKey.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Diagnostics;
+using System.Globalization;
+
+namespace Octokit
+{
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public class PublicKey
+    {
+        public int Id { get; set; }
+        public string Key { get; set; }
+
+        /// <remarks>
+        /// Only visible for the current user, or with the correct OAuth scope
+        /// </remarks>
+        public string Url { get; set; }
+
+        /// <remarks>
+        /// Only visible for the current user, or with the correct OAuth scope
+        /// </remarks>
+        public string Title { get; set; }
+
+        internal string DebuggerDisplay
+        {
+            get
+            {
+                return String.Format(CultureInfo.InvariantCulture, "ID: {0} Key: {1}", Id, Key);
+            }
+        }
+    }
+}