feat(sdk-core): add verification options for signing txHex

[mohammadalfaiyazbitgo]

TICKET: WP-6188

Tested with BTC & ETH Hot Wallets.

[margueriteblair]

This seems fine to me, do we have plans for E2E testing in a lower env?

[OttoAllmendinger]

please don't add magic binary blobs in tests

this is testing very utxo specific code and belongs in abstract-utxo

however this particular func already is extensively tested. Here you can just setup a sinon spy and ensure it gets called.

[mohammadalfaiyazbitgo]

please don't add magic binary blobs in tests

this is testing very utxo specific code and belongs in abstract-utxo

however this particular func already is extensively tested. Here you can just setup a sinon spy and ensure it gets called.

done.

[mohammadalfaiyazbitgo]

This seems fine to me, do we have plans for E2E testing in a lower env?

Yes, I tested build & signing a transaction on eth & btc hot wallets on test, and followed up with sending a transaction with 'sendMany' to make downstream functions didn't break.