added base class file for sql as well as updated users to use class

--HG--
branch : rc-botanic-webdev

code/ryzom/tools/server/ryzom_ams/ams_lib/autoload/sql.php

@@ -0,0 +1,11 @@
+<?php
+class Sql{
+    
+    public function db_query( $query, $values = array() )
+    {
+         echo "tst";
+        }
+    
+}
+    
+    

code/ryzom/tools/server/ryzom_ams/ams_lib/autoload/users.php

@@ -20,7 +20,7 @@ public function checkUser($username)
             return "Username must be 5 or more characters.";
         } elseif (!preg_match('/^[a-z0-9\.]*$/', $username)) {
             return "Username can only contain numbers and letters.";
-        } elseif (db_query("SELECT COUNT(*) FROM {users} WHERE name = :name", array(
+        } elseif (sql::db_query("SELECT COUNT(*) FROM {users} WHERE name = :name", array(
             ':name' => $username
         ))->fetchField()) {
             return "Username " . $username . " is in use.";