SWITCHYARD-737 Update BPEL schema referenced by SwitchYard to sca-implementation-bpel-1.1-cd03.xsd

Remove the Marshaller, descriptor, and schema and change package references in tests to match the
new package of the implementation model.
[SWITCHYARD-1434] - Attachment support in SOAP gateway
SWITCHYARD-1431 TransactionHandler not triggered in fault path