Add extra attributes for billing on start visit (#326)

Author: akileng56

packages/esm-patient-queues-app/src/components/visit-form/start-a-visit-form.workspace.tsx

@@ -360,6 +360,11 @@ const StartVisitForm: React.FC<VisitFormProps> = ({ closeWorkspace, patientUuid
             />
           </ResponsiveWrapper>
         </section>
+        <section className={styles.section}>
+          <ResponsiveWrapper isTablet={isTablet}>
+            <ExtensionSlot name="extra-visit-attribute-slot" />
+          </ResponsiveWrapper>
+        </section>
       </div>
       <ButtonSet className={styles.buttonSet}>
         <Button className={styles.button} kind="secondary" onClick={closeWorkspace}>