Handle included files referenced relative to directory of including file. Handle include a.vspec -> include b.vspec -> include c.vspec when b.spec does not contain anything but the include c.vspec statement
Handle included files referenced relative to directory of including file.
Handle include a.vspec -> include b.vspec -> include c.vspec when b.spec does not contain anything but the include c.vspec statement

GENIVI/vehicle_signal_specification,GENIVI/vehicle_signal_specification