ZF-3442: Define Architecture for SOAP client classes code generation

Description

Classes for SOAP clients may be constructed by IDEs at the development time. So it may help to skip WSDL parsing.

Comments

Creating a general purpose Parser for WSDL files is a first step towards generating Client Side code from it.

Creating clients for complex WSDL files is really a good idea, since classes for object parameters could be automatically created with the correct naming and stuff, saves quite some work. Can also be integrated as Zend_Tool Provider.

Issue actualy depends on [ZF-5193]