Started implementing BPEL process.
+ Most types for representing flights, hotel stays implemented
- Hotel and flight services are not integrated.
- Cancelling / fault handling is not implemented
- Correlation sets not implemented
Corrected Operations in TravelGood.wsdl to reflect operations listed in "GenerateItinerary" document on google drive.
Faults still missing on {add,remove}{Flight,HotelStay}
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