Get Tomorrow Date or add a date to given date


func getTomorrowDate() -> Date {
  let cal = NSCalendar.current
  let now = Date()
  let compSet = Set(arrayLiteral:Calendar.Component.day,
                    Calendar.Component.month,
                    Calendar.Component.year)
  var comp = cal.dateComponents(compSet as Set<Calendar.Component>, from: now)
  comp.timeZone = TimeZone.current
  comp.day = comp.day! + 1
  return cal.date(from: comp)!
}