implement following methods:

* getDeliverySolverClassNameList()
* getDeliverySolverTranslatedItemList()
* getDeliverySolverTranslatedTitle()
* getDeliverySolverTranslatedDescription()


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30439 20353a03-c40f-0410-a6d1-a30d3c3de9de