ACP-3558 Merchant payment expense support.

[abitskil]

• Developer(s): @abitskil

• Ticket: https://spryker.atlassian.net/browse/ACP-3558

• Release Group: https://release.spryker.com/release-groups/view/5494

• merge: squash

Release Table

Module	Release Type	Constraint Updates
AppPayment	major

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Module AppPayment

Change log

Breaking Changes

• Extended the entity support for the merchant transfer operation (payout/reverse payout), so now they support order items and order expenses.
• Removed PaymentTransmissionsRequest.orderItems transfer field.
• Removed PaymentTransmission.orderItems transfer field.
• Adjusted AppPaymentFacade::transferPayments() to process the payment transmission items instead of just an order items.
• Impacted AppPaymentBackendApiRouteProviderPlugin by facade changes.

Improvements

• Introduced PaymentTransmissionItem transfer.
• Introduced PaymentTransmissionsRequest.paymentTransmissionItems transfer field.
• Introduced PaymentTransmission.paymentTransmissionItems transfer field.

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