added comments to the Window class in our view package that explains what the JOptionPane does
added comments to the Window class in our view package that explains what the JOptionPane does

Also added a ToDo comment that calls attention to a better implementation idea for getting user input, but don't have time to do right now.

RyanCPeters/EC_GroupProj_CSC143,RyanCPeters/EC_GroupProj_CSC143