///-------------------------------------------------------------------------------------------------
/// <summary>
/// USA full observance calendar with typical workday configurations. Includes USA Federal
/// plus and Groundhog day, Mothers day, Fathers Day, Good Friday, Easter Sunday, Halloween,
/// Saint Patrick's Day.
/// </summary>
///
/// <example>
/// <code>
/// // using ThisDate.DefinedCalendars.USA;
/// Calendars.UsaObservance();
/// </code>
/// </example>
///-------------------------------------------------------------------------------------------------
public static void UsaObservance()
{
Holidays.NewYearsDay(true, false, true);
Holidays.MartinLutherKingDay(true);
Holidays.PresidentsDay(true);
Holidays.MemorialDay(true);
Holidays.IndependenceDay(true, true, true);
Holidays.LaborDay(true);
Holidays.ColumbusDay(false);
Holidays.VeteransDay(false, true, true);
Holidays.ThanksgivingDay(true);
Holidays.ChristmasDay(true, true, true);
Holidays.Weekends();
Holidays.ValentinesDay(false);
Holidays.MothersDay(false);
Holidays.FathersDay(false);
Holidays.GoodFriday(false);
Holidays.EasterSunday(false);
Holidays.GroundhogDay(false);
Holidays.Halloween(false);
Holidays.SaintPatrickDay(false);
}