Created NullLogger to log nothing.

src/SmsGateway/Logger/NullLogger.php

@@ -0,0 +1,22 @@
+<?php
+namespace SmsGateway\Logger;
+
+use SmsGateway\LoggerInterface;
+
+/**
+ * Description of NullLogger
+ *
+ * @author polonkai.gergely
+ */
+class NullLogger implements LoggerInterface
+{
+    public function auditLog($type, $username, $message)
+    {
+        return true;
+    }
+
+    public function messageLog($username, $recipient, $message, array $passwordLocations)
+    {
+        return true;
+    }
+}