[Extensibility Request] issue 30377: add OnBeforePrintOnlyIfSalesCheck event in Item Sales Statistics report

[AleksandricMarko]

Summary

The report 10135 "Item Sales Statistics" calculates Sales (Qty.) via CalcFields and, in the same trigger, decides whether to CurrReport.Skip() the record based on the private PrintOnlyIfSales flag before any extension code runs. Extensions that compute alternate-UOM sales figures cannot influence this skip decision because PrintOnlyIfSales has no accessible getter and the skip happens before the table's OnAfterGetRecord trigger fires. This PR exposes the already-computed skip decision through a new integration event so subscribers can override whether an item is skipped, in either direction.

Source issue repository: microsoft/AlAppExtensions; issue number: 30377

Changes Made

• Report 10135 "Item Sales Statistics" - In the Item data item OnAfterGetRecord trigger, the inline PrintOnlyIfSales skip check was factored into a local SkipRecord boolean and a new integration event OnAfterGetRecordItemOnBeforePrintOnlyIfSalesCheck(var Item; PrintOnlyIfSales; var SkipRecord) is raised after CalcFields and before CurrReport.Skip(), letting subscribers override the skip decision. Added the matching event publisher. Behavior is unchanged when no subscriber is present.

Fixes AB#644155