After P -> A -> B flow, OrderItems in B response are missing various properties including accessPass #120

Missing fields

• position
• (for virtual sessions)
  • accessChannel
  • customerNotice
• (for physical sessions)
  • accessPass
  • accessCode
• (not OrderItems but the Orders themselves):
  • totalPaymentTax (i haven't checked for all of them, but I can confirm that this was available in P's response - just not B. I expect they're all like that)
  • customer.identifier (it seems like all Customer fields excepting @type and email are missing from the B-after-P response)
  • customer.familyName
  • customer.givenName
  • customer.telephone
  • payment (therefore, payment reconcilliation tests fail)

An example failing test output:

access-channel_includes-access-channel-or-customer-notice_OpenBookingApprovalFlow_ScheduledSession.md

This error:

* ❌️ should include an `accessChannel` or a `customerNotice`
    - TypeError: Cannot read property 'accessChannel' of undefined

is because the test looks for OrderItem with position: 0 and it does not find it. The result has no position.

However, it also would have failed even still as the result has neither an accessChannel or a customerNotice - at least one of which is expected

This makes the following tests fail in Approval mode:

• includes-access-channel-or-customer-notice
• manual-access-codes
• access-barcode-seller
• access-pass-image
• access-code-update-notifications
• access-pass-update-notifications
• customer-notice-notification
• business-to-business-tax-calculation-net
• business-to-consumer-tax-calculation-net
• fail-outside-window
• succeed-within-window
• atomic-cancel
• book-and-cancel
• patch-contains-excessive-properties-error
• patch-not-allowed-on-property-error
• ...and some more