New functionality for users with the Member role: Manage subordinates

Adding the subordinates to the role Member may now expand its possibilities. Such userss with "Supervisor" extension can:

• Book and manage their subordinates' bookings ( meetings, desks and parking places)
• View their team's bookings
• View and schedule their team's schedule
• Generate reports wiht information about the bookings of their subordinates

With "Office Privacy" policy enabled, such "Members" will still be able to view and manage their subordinates' bookings.