erp5_accounting: closing an Accounting Period generates one Balance Transaction per accounting ledger

erp5_research_item: removes the call to the parent_ledger related key in ResearchItemModule_callResearchSummaryReport

erp5_accounting : adds "Ledger" in the more columns of Entity_viewAccountingTransactionList and Account_viewAccountingTransactionList (fix for 994e3555)

Revert "test_account* and test_entities*: updates index of some element since addition of new column "Ledger" in Account_viewAccountingTransactionList and Entity_viewAccountingTransactionList"

As we don't display "ledger" columns in these views, updating theses tests is not needed anymore

This reverts commit ac74b510.

erp5_mysql_innodb: before adding a new index, performances tests should be driven (fix for 6c510537)

erp5_accounting: simpler tales expression in Entity_viewAccountingTransactionList/your_preferred_ledger (fix for 994e3555)

erp5_accounting: simpler tales expression in Account_viewAccountingTransactionList/your_preferred_ledger (fix for 994e3555)

erp5_accounting: replaces "here.portal_preferences" by "preferences" in TALES expressions in Account_viewAccountingTransactionList (fix for 994e3555)

erp5_accounting: replaces "here.portal_preferences" by "preferences" in TALES expressions in Entity_viewAccountingTransactionList

erp5_accounting: adds "ledger" in the extra columns of AccountingTransactionModule_viewAccountingTransactionList

erp5_accounting: removes "ledger" column from the listbox in Entity_viewAccountingTransactionList (fix for 994e3555

erp5_accounting: removes "ledger" column from the listbox in Account_viewAccountingTransactionList (fix for 994e3555)

test_account* and test_entities*: updates index of some element since addition of new column "Ledger" in Account_viewAccountingTransactionList and Entity_viewAccountingTransactionList

erp5_accounting : preferred ledger form field only displays ledgers defined on accounting transactions types. The field doesn't shows up if no ledger is defined nowhere

erp5_core: new stock.ledger_uid column taken into account in Resource_zGetInventoryList and Resource_zGetMovementHistoryList

A new column ledger in the stock table and some related keys
(stored in erp5_mysql_innodb_catalog) have also been created
Adds tests for inventory queries based on ledger in testInventoryAPI