Introduce a new category account_type to separate bank and cash Accounts....

Introduce a new category account_type to separate bank and cash Accounts. (account_type/asset/cash => account_type/asset/bank & account_type/asset/bank/cash )


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3951 20353a03-c40f-0410-a6d1-a30d3c3de9de