Enabled Billing Plans and Agreements APIs

- Added API Classes, Samples, and Tests
- Updated Functional Tests
- Updated Documentation with new SDK Name
- Updated Few Samples to use newer nicer result page

lib/PayPal/Api/OverrideChargeModel.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace PayPal\Api;
+
+use PayPal\Common\PPModel;
+
+/**
+ * Class OverrideChargeModel
+ *
+ * A resource representing an override_charge_model to be used during creation of the agreement.
+ *
+ * @package PayPal\Api
+ *
+ * @property string charge_id
+ * @property \PayPal\Api\Currency amount
+ */
+class OverrideChargeModel extends PPModel
+{
+    /**
+     * ID of charge model.
+     *
+     * @param string $charge_id
+     * 
+     * @return $this
+     */
+    public function setChargeId($charge_id)
+    {
+        $this->charge_id = $charge_id;
+        return $this;
+    }
+
+    /**
+     * ID of charge model.
+     *
+     * @return string
+     */
+    public function getChargeId()
+    {
+        return $this->charge_id;
+    }
+
+    /**
+     * ID of charge model.
+     *
+     * @deprecated Instead use setChargeId
+     *
+     * @param string $charge_id
+     * @return $this
+     */
+    public function setCharge_id($charge_id)
+    {
+        $this->charge_id = $charge_id;
+        return $this;
+    }
+
+    /**
+     * ID of charge model.
+     * @deprecated Instead use getChargeId
+     *
+     * @return string
+     */
+    public function getCharge_id()
+    {
+        return $this->charge_id;
+    }
+
+    /**
+     * Updated Amount to be associated with this charge model.
+     *
+     * @param \PayPal\Api\Currency $amount
+     * 
+     * @return $this
+     */
+    public function setAmount($amount)
+    {
+        $this->amount = $amount;
+        return $this;
+    }
+
+    /**
+     * Updated Amount to be associated with this charge model.
+     *
+     * @return \PayPal\Api\Currency
+     */
+    public function getAmount()
+    {
+        return $this->amount;
+    }
+
+}