Initial import of work on Web Service Consumer
MULE-7217	Migrate Tests to new Web Services Consumer module

Added some basic tests to the web services consumer.
MULE-7218: Get SOAP action working correctly

Changed WSConsumer so that the SOAP action is read from the WSDL.
MULE-7222: An exception to be thrown when a SOAPFault is returned

Added an interceptor to catch CXF exceptions thrown on SOAP faults and wrapping then into a custom SoapFaultException from the ws consumer module.
MULE-7217: Migrate Tests to new Web Services Consumer module

Refactored WS consumer tests, added test on digest password type and fixed the username token security strategy.
MULE-7220: Use an expression for the service address

Added tests that use expressions in the serviceAddress property of the WS consumer
MULE-7222: An exception to be thrown when a SOAPFault is returned

Changed interceptor to set the payload with the details of the SOAPFault. Improved tests.
MULE-7196: Integrate the current Web Services Component to Mule

Added documentation to the xsd file. Implemented missing attributes in the username token security strategy.
Merge pull request #280 from mulesoft/ws-consumer

MULE-7196: Integrate the current Web Services Component to Mule