v2.2.0: 1) feat: add asyncAggregateWithRandomness (#159)

* feat: add asyncAggregateWithRandomness

* fix: remove unnecessary errors

* feat: run sig validation in worker thread

* fix: sigh JS... sigh.... its all async... but its not

* docs: add comment about wonky blst error

* chore: small refactor

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Co-authored-by: Cayman <caymannava@gmail.com> (matthewkeil)
(SHA: fa3a944b086944c5a5012e4875a70e3474697da3)

2) v2.2.0 (#160) (matthewkeil)
(SHA: 1c0711b98d6724381985611701db2e7922a7537e)