Enabled Payment Experience

- Updated Api to enabled Payment Experience
- Updated Tests and Samples
- Added Json Validator
- Ability for PPModel to return array of self objects

lib/PayPal/Api/CreateProfileResponse.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace PayPal\Api;
+
+use PayPal\Common\PPModel;
+use PayPal\Rest\ApiContext;
+
+/**
+ * Class CreateProfileResponse
+ *
+ * Response schema for create profile api
+ *
+ * @package PayPal\Api
+ *
+ * @property string id
+ */
+class CreateProfileResponse extends PPModel
+{
+    /**
+     * ID of the payment web experience profile.
+     * 
+     *
+     * @param string $id
+     * 
+     * @return $this
+     */
+    public function setId($id)
+    {
+        $this->id = $id;
+        return $this;
+    }
+
+    /**
+     * ID of the payment web experience profile.
+     *
+     * @return string
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+}