For bank accounts, possible values are new, validated, verified,
verification_failed, or errored.
A bank account that hasn’t had any activity or validation performed
is new.
If Stripe can determine that the bank account exists,
its status will be validated.
Note that there often isn’t enough information to know
(e.g., for smaller credit unions), and the validation is not always run.
If customer bank account verification has succeeded, the bank account
status will be verified. If the verification failed for any reason,
such as microdeposit failure, the status will be verification_failed.
If a transfer sent to this bank account fails, we’ll set the status to
errored and will not continue to send transfers until the bank details
are updated.