Add Config to show symbols on appt screen by dx reg

This change can be used to mark patients on the appt screen with a certain dx's registered. EG. a symbol for diabetics or asthma patients etc.

This interacts with the appt screen and an administration screen.

This adds more items to the appt screen but doesn't have to be used if they don't want it.

If clinics want to highlight certain patients that they are actively trying to track they will not have a way without checking each patient.

1. Add diabetes as a code to show in the appt screen.
2.Create an appt for a patient with dm2.
3.Verify that diabetes symbol is shown.

Change the manual.

3 dayss