Created A Notes Feature

The Notes Feature is somewhat complete. It works, a list of notes is
given to the user when selecting the notes feature. There is an option
to add a note as well. When selecting a note, it is displayed to the
user. The user then can select to edit the note or delete the note. This
was developed based on the Appointments feature, with a couple of
differences. There is more that can be done, but this is a start.
Added Error Checking For Notes

Added some error checking on the user input for the notes editor. The
list now displays the date of when the note was created. The list of
notes are in order from newest to oldest.