added initial support for service definition

Soap/SoapHeader.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Bundle\WebServiceBundle\Soap;
+
+class SoapHeader
+{
+    private $namespace;
+    private $name;
+    private $data;
+
+    public function __construct($namespace, $name, $data)
+    {
+        $this->namespace = $namespace;
+        $this->name = $name;
+        $this->data = $data;
+    }
+
+    public function getNamespace()
+    {
+        return $this->namespace;
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    public function toNativeSoapHeader()
+    {
+        return new \SoapHeader($this->namespace, $this->name, $this->data);
+    }
+}