users filter email

src/Auth/DataAccess/LuticateUsersDataAccess.php

     {
         return array(array("username", "ilike", "%" . $query . "%", "or"),
             array("firstname", "ilike", "%" . $query . "%", "or"),
-            array("lastname", "ilike", "%" . $query . "%", "or"));
+            array("lastname", "ilike", "%" . $query . "%", "or"),
+            array("email", "ilike", "%" . $query . "%", "or"));
     }
 
     /**