cn → contractors Relation

File in src/core/cn	Includes file in src/core/contractors
codac_Contractor.h	static / codac_Ctc.h
codac_Contractor.h	dyn / codac_DynCtc.h
codac_ContractorNetwork.h	static / codac_Ctc.h
codac_ContractorNetwork.h	dyn / codac_CtcDeriv.h
codac_ContractorNetwork.h	dyn / codac_DynCtc.h