Documented rif40_ddl_checks

Remove default execute privileges. Some privs missings; as are checks
for defualt execute privs.

ALTER DEFAULT PRIVILEGES FOR ROLE rif40 REVOKE EXECUTE ON FUNCTIONS FROM
PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA rif40_sm_pkg REVOKE EXECUTE
ON FUNCTIONS FROM PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA
rif40_sql_pkg REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;
ALTER DEFAULT
PRIVILEGES IN SCHEMA rif40_sim_pkg REVOKE EXECUTE ON FUNCTIONS FROM
PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA rif40_log_pkg REVOKE EXECUTE
ON FUNCTIONS FROM PUBLIC;
ALTER DEFAULT PRIVILEGES IN SCHEMA
rif40_dmp_pkg REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;
ALTER DEFAULT
PRIVILEGES IN SCHEMA rif40_geo_pkg REVOKE EXECUTE ON FUNCTIONS FROM
PUBLIC;