FROST Rerandomized TypeScript Library - v0.2.2-alpha.3

FROST implementation supporting re-randomizable keys.

To sign with re-randomized FROST:

1. Do Round 1 the same way as regular FROST;

2. The Coordinator should call RandomizedParams.newFromCommitments() and send the generated randomizer seed (the second returned value) to all participants, using a confidential channel, along with the regular SigningPackage;

3. Each participant should regenerate the RandomizedParams by calling RandomizedParams.regenerateFromSeedAndCommitments(), which they should pass to signWithRandomizerSeed() and send the resulting SignatureShare back to the Coordinator;

4. The Coordinator should then call aggregate().