Enabled Payout API Support

- Includes Unit and Functional Tests
- Includes Samples

sample/payouts/GetPayoutBatchStatus.php

@@ -0,0 +1,25 @@
+<?php
+
+// # Get Payout Batch Status Sample
+//
+// This sample code demonstrate how you can get the batch payout status of a created batch payout, as documented here at:
+// https://developer.paypal.com/docs/api/#get-the-status-of-a-batch-payout
+// API used: GET /v1/payments/payouts/<Payout-Batch-Id>
+
+/** @var \PayPal\Api\PayoutBatch $payoutBatch */
+$payoutBatch = require 'CreateBatchPayout.php';
+// ## Payout Batch ID
+// You can replace this with your Payout Batch Id on already created Payout.
+$payoutBatchId = $payoutBatch->getBatchHeader()->getPayoutBatchId();
+
+// ### Get Payout Batch Status
+try {
+    $output = \PayPal\Api\Payout::get($payoutBatchId, $apiContext);
+} catch (Exception $ex) {
+    ResultPrinter::printError("Get Payout Batch Status", "PayoutBatch", null, $payoutBatchId, $ex);
+    exit(1);
+}
+
+ResultPrinter::printResult("Get Payout Batch Status", "PayoutBatch", $output->getBatchHeader()->getPayoutBatchId(), null, $output);
+
+return $output;