[IMP] project : remove copy() method in res_partner and remove search() method,
    set_cancel, set_pednding, set_open set_done, progress_rate fields in project.project.
    remove everything related for all.
    [IMP] project : remove _str_get, set_remaining_task* methods, replace categ_ids into
        tag_ids fields and project.category into project.tags object remove review_id
        fields in project.task and remove related everythings.