Add the SQL with demo data

Serves to prime up the database for development and for testing the
application on the staging server.

demo.sql

@@ -0,0 +1,11 @@
+begin;
+
+set search_path to camper, auth, public;
+
+alter sequence user_user_id_seq restart with 42;
+insert into auth."user" (email, name, password, role)
+values ('demo@numerus', 'Demo User', 'demo', 'employee')
+     , ('admin@numerus', 'Demo Admin', 'admin', 'admin')
+;
+
+commit;