Make getSubordination(), getGrade(), getRole() and so on working on Person...

Make getSubordination(), getGrade(), getRole() and so on working on Person through default career acquisition.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3581 20353a03-c40f-0410-a6d1-a30d3c3de9de