DNString2Date:
-------------------------------------------------------------------------------
Converts a day number string to a date.
-------------------------------------------------------------------------------
Form:
dateTime = DN2Date( dN, year )
-------------------------------------------------------------------------------
------
Inputs
------
dn (1,1) Day number
year (1,1) Year
-------
Outputs
-------
dateTime (1,6) [year month day hour minute seconds]
-------------------------------------------------------------------------------
Children:
Common: Time/DN2Date
