The unpac monorepo manager self-hosting as a monorepo using unpac

fix documentation (some persistent graphs were documented as being imperative)

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src/persistent.mli
··· 73 73 standard concrete directional graphs. But accessing predecessors and 74 74 removing a vertex are faster. *) 75 75 76 - (** Imperative Unlabeled, bidirectional graph. *) 76 + (** Persistent Unlabeled, bidirectional graph. *) 77 77 module ConcreteBidirectional (V: COMPARABLE) : 78 78 Sig.P with type V.t = V.t and type V.label = V.t and type E.t = V.t * V.t 79 79 and type E.label = unit 80 80 81 - (** Imperative Labeled and bidirectional graph. *) 81 + (** Persistent Labeled and bidirectional graph. *) 82 82 module ConcreteBidirectionalLabeled(V:COMPARABLE)(E:ORDERED_TYPE_DFT) : 83 83 Sig.P with type V.t = V.t and type V.label = V.t 84 84 and type E.t = V.t * E.t * V.t and type E.label = E.t