* new is1toManyXECSend state added to Send.js to conditionally render address input field based on whether the user is in single recipient or multi-recipient mode.
* When in multi-recipient mode, new <TextArea> is rendered for users to input multiple recipients with formatting instructions shown in placeholder text.
* submit() function in Send.js updated to reflect whether the is1toManyXECSend modal is true or false. If true (multi recipient), it iterates through the <TextArea> inputs and converts it into an array and validates each line.
* new toLegacyArray() function added to Ticker.js which traverses the array of recipient addresses and converts them to bch cash addresses due to bch-api constraint
* new sendMultiBch() function added to useBCH.js which builds a multi recipient transaction.
* See https://explorer.be.cash/tx/534a360fb1759291f1ab4a94c7fa4b45fbdac1a3df1f14ef7ce2afcfad8f9355 for mainnet execution
T1954