Added conversion pixel calls

Author: mrm

Atomx/Resources/ConversionPixel.php

@@ -0,0 +1,21 @@
+<?php namespace Atomx\Resources;
+
+use Atomx\AtomxClient;
+use Atomx\Resources\Traits\NameTrait;
+use Atomx\Resources\Traits\StateTrait;
+
+class ConversionPixel extends AtomxClient {
+    use NameTrait, StateTrait;
+
+    protected $endpoint = 'conversion-pixel';
+
+    public function setDuration($seconds)
+    {
+        $this->duration = $seconds;
+    }
+
+    public function setDurationInDays($days)
+    {
+        $this->setDurationSeconds($days * 60 * 60 * 24);
+    }
+}