Print Item Label - Allow printer selection (or rework to normal print event)

The item label printing is a direct call to the PmxPrintReportProvider.PrintItemLabel() function. This, however, does mean that in contrast to all "real" print events, it isn't possible to let end users select the printer at runtime. 

This feature request is to either add selectable printers to the item label prints via a config option, or to rework this functionality to make it a normal print event so the option is available that way