Implement state restoration in the HypnoNerd application. The process will be nearly identical to what you did in this chapter. Make sure to encode the UITextField text and the currently selected date on the UIDatePicker.

(Hint: to completely finish this challenge, the BNRHypnosisView should also save and restore the labels that have been added to it. You will want to give the BNRHypnosisView a restoration identifier and implement the appropriate encode and decode methods.)