add new script ERP5Accounting_getParams that get parameters from selection/preference (and uses a request cache
AccountModule_getAccountingTransactionCount apply the selection filter for the stat method



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@9727 20353a03-c40f-0410-a6d1-a30d3c3de9de