Czech bank account number validator for Symfony

Implemented Czech bank account number validator by @malja GIST

Data

Bank list - Last updated 10th of October 2020 (https://www.cnb.cz/cs/platebni-styk/ucty-kody-bank/)

Usage

$builder->add('bankAccountNumber', TextType::class, [
    'constraints' => [new CzechBankAccountNumber(['message' => 'bankAccountNumber.format'])]
]);