[Cashtab] [chronik utxo handling p10] chronik token minting

Summary:
T2447

Depends on D11977

Patch token creation function to support new chronik utxo format. Patch qty bug in mint calculation.

Test Plan:
npm start
Create a token. Review the tx on block explorer to confirm change, fees, general sanity check.
Inspect tx history and observe correct display of genesis qty.

Reviewers: #bitcoin_abc, emack

Reviewed By: #bitcoin_abc, emack

Subscribers: emack

Differential Revision: https://reviews.bitcoinabc.org/D11978