steer → generators Relation

File in sim/transport/steer	Includes file in sim/transport/generators
CbmTransport.cxx	CbmPlutoGenerator.h
CbmTransport.cxx	CbmUnigenGenerator.h
CbmTransportConfig.cxx	CbmBeamGenerator.h
CbmTransportConfig.cxx	CbmPlutoGenerator.h