[DevKit] POS System API docs - the "printing additional lines" uses ftReceiptCaseData.cbReceiptLines BUT the whole ftReceiptCaseData object is currently not documented

[turtletramp]

https://github.com/fiskaltrust/api-definitions/blob/9e918a68eced90118d98810cc8e41cba6ea4fd1b/fiskaltrust-possystem-api/swagger.yaml#L853

The sample uses the ftReceiptCaseData.cbReceiptLines:

But in the documentation we only have this (was already that way in the original, preview documentation):

TODO: Gather information about the definition of the ftReceiptCaseData object and update the API docs