====== AddDate ======
The function //AddDate()// adds a period (//d// days - default -, //m// months or //y// years) to a date and returns it as a result.
The date is returned as a character string in short date format in the language in which the server is configured.
E.g. for fr-FR culture: dd/MM/yyyy, for nl-NL culture d-M-yyyy.
==== Syntax: ====
AddDate('Datum', 'Anzahl', 'Identifikator')
==== Sample====
AddDate('29.09.2006', '10' )
returns 09.10.2006
AddDate('29.09.2006', '10', 'd')
returns 09.10.2006
AddDate('29.09.2006', '1', 'm')
returns 29.10.2006
AddDate('29.09.2006', '1', 'y')
returns 29.09.2007
AddDate(ActualDateTime("yyyy-MM-dd"), '11', 'd')
Today in 11 days