STEP 3: Create an addScoreView Method

- Create an addScoreView method that will add a UIView to the scrollView
- In the method Initialize a UIView called view
- Initialize a UITextField for name, a UILabel for score, and a UIStepper for a button
- Lay them out by setting their frames in the new view
- Add that view to the scrollview
- You'll want to adjust the properties of each of those controls:
-- Placeholder text for the textfields
-- Min and max values for the stepper

Signed-off-by: Taylor Mott <trm36@humboldt.edu>