use new API getAvailableBudgetDict, getEngagedBudgetDict and getConsumedBudgetDict that does only one getInventoryList query for each budget line, and also shows consumptions for cells where no budget has been defined

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@37226 20353a03-c40f-0410-a6d1-a30d3c3de9de