This module writes in a directory a program containing only the clauses specified by a specific state (generated by edition_sequence_generator).
Usage:write_dir_state(+State,+DirType,+DstDir,CheckoutPred)
Writes State of clauses in modules in directory DstDir.
Usage:write_dir_state_sequence(+Seq,+DirType,+Dir)
Writes in directory Dir a directory for each of the steps in sequence Seq.