New function to determine the number of working days between two dates

A function has been added in the user LDM to determine the number of working days between two dates. You can also indicate whether public holidays should be included in the calculation. Both LDM fields and fixed dates can be used:

• [CalculateWorkDays([startdatum],[einddatum],true)]
  Holidays are included in the calculation; weekends and holidays are not counted.
• [CalculateWorkDays([startdatum],[einddatum],false)]
  Holidays are not included in the calculation; only weekends are not counted.