feat : Becs bank debit

[Pradeep-kumar1202]

Description

• Integrated BECS Debit with dynamicFields support.

• Passing of mandate data should be done from redirect.res as the customer_acceptance object should be inside the
  mandate_data object.

• Mandate_data object has been taken from the Hyperswitch API reference.

  NOTE: The mandate_type should be passed from create-payment-intent

• Validations:

  1. The account number should contain only 9 digits
  2. The BSB should contain only 6 digits
     These are validated by a customValidationFunc for validation and for user input restriction by using customOnChangeFunc

• Added Local Strings for validations

  1. if not matching with validations Please enter valid X digits Bank Routing Number.
  2. on confirm click with empty fields, Please enter valid details.

• Added icons for BECS debit, which can be moved to maven central.

• the payment will be in processing state after few seconds to minutes it is getting updated to success in the dashboard.
  ###BECS Debit
  payment flow video :

BECS.mp4