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

Add BPEL logic to the composite marshaller.     Move the ComponentImplementationModel to core.
SWITCHYARD-1435 ExchangeCompletion event missing after Camel refactor
ignore .xml directories
[SWITCHYARD-1463] - Support loading included XSLs from a relative path