libsumo → vehicle Relation

File in src/libsumo	Includes file in src/utils/vehicle
Helper.h	SUMOVehicleParameter.h
libsumo/Person.cpp	SUMOVehicleParserHelper.h
libsumo/Vehicle.cpp	SUMOVehicleParserHelper.h
libsumo/VehicleType.cpp	SUMOVehicleParserHelper.h