* clients/js: worm parse should output valid json
This was really useful when looking at a list of all governance vaas
to see which ones were guardian set upgrades.
* clients/js: update worm parse test fixtures
Since `worm parse` outputs in native json now, ensure the test fixtures
are also in json format.
* clients/js: move quiet.ts --> side-effects.ts
Now that the BigInt side effect for json serialization is in this file,
it isn't just to "quiet" the log warning anymore.
Addresses review feedback from @evan-gray
Jeff Schroeder