update getWeekendHolidayObservationDate <br/> if a muslim country and 6 working day set week leave on fry day, <br/>if a muslim country and 5 working day fryday and satarday will be holiday
update getWeekendHolidayObservationDate
if a muslim country and 6 working day set week leave on fry day,
if a muslim country and 5 working day fryday and satarday will be holiday