[Cashtab] Move parseAddressForParams out of Ticker.js

Summary: Similar to D14102, this diff moves the parseAddressForParams function out of Ticker.js and into cashMethods.

Test Plan:

• grep -r parseAddressForParams src/ and ensure all import statements are referring to cashMethods.js rather than Ticker.js
• npm test
• npm start
• regression test scanning of a valid and invalid QR code for address (use https://d14115.netlify.app/ on phone)
• regression test signing and verifying signatures
• regression test sending a token to an ecash address
• regression test sending XEC to an ecash address

Reviewers: bytesofman, #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D14116