`Name` should be a required field on BankAccounts

[msherry]

NACHA requires it, so we're doing our customers a disservice by letting them leave this null. It just leads to R03 errors ("Account is closed or doesn't match name submitted") like https://dp.balancedpayments.com/#/marketplaces/MPygHgNFWFE1uBzycvx7s4D/credits/CR70DQQcAFF2Zty7qvXhtuRk.