Create abstract request for all apis.

Author: Reza Shadman

src/Api/Request.php

@@ -0,0 +1,10 @@
+<?php namespace Quince\Pelastic\Api;
+
+use Quince\Pelastic\AccessibleMutatableTrait;
+use Quince\Pelastic\Contracts\Api\RequestInterface;
+
+abstract class Request implements  RequestInterface {
+
+    use AccessibleMutatableTrait;
+
+}