Capable of showing absences of type vacation for last year, current year and next year
Shows in mode mode "Current Year":
- Vacation Days per Year: As defined in portlet "Employee Information"
- Vacation Balance from last Year: As defined in portlet "Employee Information"
- Vacations taken this Year: Sum of all absences of type "Vacation" in current year
- Vacation left for Period: Vacation Days per Year + Vacation Balance from last Year - Vacations taken this Year