Samples for All Invoice Operations including QR Code

- Invoice search method is static now
- Shipping Info has proper Phone Params
- Small Changes to Image Class
- Updated Sample Docs

lib/PayPal/Api/InvoiceSearchResponse.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace PayPal\Api;
+
+use PayPal\Common\PPModel;
+
+/**
+ * Class InvoiceSearchResponse
+ *
+ * 
+ *
+ * @package PayPal\Api
+ *
+ * @property int total_count
+ * @property \PayPal\Api\Invoice[] invoices
+ */
+class InvoiceSearchResponse extends PPModel
+{
+    /**
+     * Total number of invoices.
+     *
+     * @param int $total_count
+     * 
+     * @return $this
+     */
+    public function setTotalCount($total_count)
+    {
+        $this->total_count = $total_count;
+        return $this;
+    }
+
+    /**
+     * Total number of invoices.
+     *
+     * @return int
+     */
+    public function getTotalCount()
+    {
+        return $this->total_count;
+    }
+
+    /**
+     * Total number of invoices.
+     *
+     * @deprecated Instead use setTotalCount
+     *
+     * @param int $total_count
+     * @return $this
+     */
+    public function setTotal_count($total_count)
+    {
+        $this->total_count = $total_count;
+        return $this;
+    }
+
+    /**
+     * Total number of invoices.
+     * @deprecated Instead use getTotalCount
+     *
+     * @return int
+     */
+    public function getTotal_count()
+    {
+        return $this->total_count;
+    }
+
+    /**
+     * List of invoices belonging to a merchant.
+     *
+     * @param \PayPal\Api\Invoice[] $invoices
+     * 
+     * @return $this
+     */
+    public function setInvoices($invoices)
+    {
+        $this->invoices = $invoices;
+        return $this;
+    }
+
+    /**
+     * List of invoices belonging to a merchant.
+     *
+     * @return \PayPal\Api\Invoice[]
+     */
+    public function getInvoices()
+    {
+        return $this->invoices;
+    }
+
+    /**
+     * Append Invoices to the list.
+     *
+     * @param \PayPal\Api\Invoice $invoice
+     * @return $this
+     */
+    public function addInvoice($invoice)
+    {
+        if (!$this->getInvoices()) {
+            return $this->setInvoices(array($invoice));
+        } else {
+            return $this->setInvoices(
+                array_merge($this->getInvoices(), array($invoice))
+            );
+        }
+    }
+
+    /**
+     * Remove Invoices from the list.
+     *
+     * @param \PayPal\Api\Invoice $invoice
+     * @return $this
+     */
+    public function removeInvoice($invoice)
+    {
+        return $this->setInvoices(
+            array_diff($this->getInvoices(), array($invoice))
+        );
+    }
+
+}