- verify-consistency without --signer now says whether each head is signed and by which key, and that no expected signer was
checked (verify-inclusion already did; the README said the output does)
- openMessage opens nothing without a replay store (seen: an object with has/add that keeps the ids for at least maxAgeS);
before, the same signed and sealed message could be opened any number of times when no store was given
Tests: verify-layer tree 20/20, negative control 14/14; sidecar 44/44, 9/9; travel rule 19/19, negative control 19/19.
