* modified the pricing model on SupplyLine (added and modify some skins)
* removed supply_module
* removed Supply Module, Supply
* added purchase_supply_module, sale_supply_module
* added Sale Supply, Sale Supply Module, Purchase Supply, Purchase Supply
Module


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4290 20353a03-c40f-0410-a6d1-a30d3c3de9de