*add new options in Base_viewStockReportSite to generate also report for items
*modify PackingList_viewAsODT so that items' references appear on PackingList report.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@28451 20353a03-c40f-0410-a6d1-a30d3c3de9de