We need to create a web service php template to explain how to write a get_MODULE() web service functions.

Each of the mod_MODULE_get_MODULE() / get_MODULE_returns will have quite some piece of code in common. We need to find out what methods we can add to the exertnal library (lib/externallib.php) to help developer to create these two functions. Then the developer will concentrate only on the module specific fields. Finally we need some php template for "web service module" quick start.