Support on-site card payment

[jakubtobiasz]

One of our requirements is in-store card payment, so we want to be able to provide card data, click Complete and without leaving the store a payment should be processed.

Small wins 🏆

• [x] As a customer I should be able to provide a card owner name, a card number and a CVV/CVV2 code
• [x] Card data should be encrypted on a client side
• [x] After completing an order, a transaction should be created
• [x] If 3DS is required (status = pending) redirect a customer to a page returned in a create transaction response
• [x] After a failure payment (e.g. 3DS verification failed) I'm able to choose other Tpay payment
• [ ] A customer should always be redirected to a waiting for a payment page
• [ ] System should check in intervals whether a payment is updated via a notification (handling notifications is already handled)
• [ ] Once a new payment status is set, a customer should see a success/error page
• [ ] A customer should be informed if provided data are invalid (e.g. wrong length, format, etc.)
• [x] Adjust fixtures to make testing this feature easier

Ref:

• https://docs-api.tpay.com/en/payment-methods/cards/#on-site-card-transaction

[jakubtobiasz]

Not finished wins will be implemented in #27 and #25