[ADD]HR,Department: added kanban view of department like sales team.

- Task: https://www.odoo.com/web#id=8079&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.7gTUtIb6QLQ7PqwS
You should use a read_group, working on all departments.