support Directory Reference

Files
	BiasNoiseModel.cpp
	BiasNoiseModel.h
	DirectionalAdaptiveGuidance.cpp
	DirectionalAdaptiveGuidance.h
	EffectiveSolarAreaModel.cpp
	EffectiveSolarAreaModel.h
	ExternalInterfaceModel.cpp
	ExternalInterfaceModel.h
	LvlhFrameManagerModel.cpp
	LvlhFrameManagerModel.h
	MarkovUncertaintyModel.cpp
	MarkovUncertaintyModel.h
	PidTranslationalControl.cpp
	PidTranslationalControl.h
	SimTableScheduleModel.cpp
	SimTableScheduleModel.h
	SixDOFDynamicsModel.cpp
	SixDOFDynamicsModel.h
	TabularThrustModel.cpp
	TabularThrustModel.h