Xendit-python

- Fix incorrect field name for channel_properties.cards.installment_configuration.allowed_terms.terms

- Adding new currency and bank codes enum in Invoice
- Add new field installment_configuration in Invoice
- Add HTTP Response parsing error check in xendit-go

- [Payment Methods] EWallet Channel Properties: New fields pending_return_url and promotion_label
- [Payment Methods] Direct Debit Channel Code: BNI enum changed to BNI_AUTOPAY
- [Payment Methods] Direct Debit Channel Properties New fields destination_account_id
- [Payment Methods] Card Channel Properties: New fields installment_configuration and merchant_id_tag
- [Payment Methods] New Error Code enums
- [Payment Requests] New XP Header with-split-rule
- [Payment Requests] Channel Properties: New fields pending_return_url and installment_configuration
- New channel codes for Direct Debit, Virtual Account, QR, and Card

- Add simulatePaymentRequestPayment API in payment-request
- Add pending_return_url field in ewallet payment method

- Add field channel_properties.cards.allowed_bins: array of string in Invoice Object
- Add field channel_properties.cards.installment: object in Invoice Object

- Fix RefundCallbackData Object, rename payment_request_id to payment_id