Add real name col / citizen name prop (#12)

Still need to work on allowing the column to be edited

src/database/12-add-real-name.sql

@@ -0,0 +1,8 @@
+ALTER TABLE jjj.citizen ALTER COLUMN display_name DROP NOT NULL;
+ALTER TABLE jjj.citizen ADD COLUMN real_name VARCHAR(255);
+
+COMMENT ON COLUMN jjj.citizen.real_name
+  IS 'The real name of the user';
+
+-- This can be run as often as needed
+UPDATE jjj.citizen SET display_name = NULL WHERE display_name = na_user;