Enabled EC Parameters support

- Updated Api to enabled EC Parameters
- Updated Tests
- Updated Logging Manager
- Added a feature to do validation on accessors.

lib/PayPal/Api/Credit.php

@@ -0,0 +1,93 @@
+<?php
+
+namespace PayPal\Api;
+
+use PayPal\Common\PPModel;
+use PayPal\Rest\ApiContext;
+
+/**
+ * Class Credit
+ *
+ * A resource representing a credit instrument.
+ *
+ * @package PayPal\Api
+ *
+ * @property string id
+ * @property string type
+ * @property string terms
+ */
+class Credit extends PPModel
+{
+    /**
+     * Unique identifier of credit resource.
+     * 
+     *
+     * @param string $id
+     * 
+     * @return $this
+     */
+    public function setId($id)
+    {
+        $this->id = $id;
+        return $this;
+    }
+
+    /**
+     * Unique identifier of credit resource.
+     *
+     * @return string
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * specifies type of credit
+     * Valid Values: ["BILL_ME_LATER", "PAYPAL_EXTRAS_MASTERCARD", "EBAY_MASTERCARD", "PAYPAL_SMART_CONNECT"] 
+     *
+     * @param string $type
+     * 
+     * @return $this
+     */
+    public function setType($type)
+    {
+        $this->type = $type;
+        return $this;
+    }
+
+    /**
+     * specifies type of credit
+     *
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * URI to the associated terms
+     * 
+     *
+     * @param string $terms
+     * 
+     * @return $this
+     */
+    public function setTerms($terms)
+    {
+        $this->terms = $terms;
+        return $this;
+    }
+
+    /**
+     * URI to the associated terms
+     *
+     * @return string
+     */
+    public function getTerms()
+    {
+        return $this->terms;
+    }
+
+}