[FIX] hr_expense: limit activity type creation to expense managers
[FIX] hr_expense: limit activity type creation to expense managers

Expense users should not be able to create activity types. This is limited to
managers like in other applications allowing to create activity types.

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo