[FEAT] Add mandates for Payload #8610
Description
- Add MIT payments to Payload connector
- Add connector customer
- Fix amount conversion
Relevant docs:
- https://docs.payload.com/apis/payments/
- https://docs.payload.com/apis/payments/charging-a-customer/
- https://docs.payload.com/apis/automatic-payments/
- https://docs.payload.com/apis/customers/
- https://docs.payload.com/apis/object-reference/customers/
- https://docs.payload.com/apis/object-reference/transactions/
- https://docs.payload.com/apis/api-design/