ADDWORKINGDAYS{...} -- add working days to date

• Calculates the day that is a number of working days later or earlier then a given date
• Syntax: %ADDWORKINGDAYS{"format" date="date|$variable" delta="days" holidays="comma separated list of dates"}%
• Supported parameters:

  Parameter:	Description:	Default:
  holidays="list of dates"	comma separated list of dates. The dates can be in any format defined in System/TimeSpecifications	none
  delta="number of days"	Days can be positive for the future or negative for the past	0
  "format"	Format of the displayed date. Time is always 12:00 in returned result. The tokens are specified Time Format Tokens below	format defined by the {DefaultDateFormat} setting in configure
  date="date"	List of dates separated by comma. If delta is a positive number the latest of the dates is used. If delta is negative the earliest date is used. The dates can be in any format defined in System/TimeSpecifications (time is ignorred), or it can be the name of a TimeCalcPlugin storage name prefixed by a '$'. E.g. $myvar	today
  store="variablename"	Name of a variable in which the calculated date is stored. This variable can be used in another TimeCalcPlugin macro as an input date	none

• Example: %ADDWORKINGDAYS{"$year-$mo-$day date="23 Nov 2010" delta="25" holidays="24 Dec 2010, 25 Dec 2010, 01 Jan 2011"}%
• Note: When adding working days the start day is not included. The resulting enddate is included.