Add updater to adapt CMS's schema from v1.5 (#1420)

Author: wil93

cmscontrib/updaters/update_from_1.5.sql

@@ -0,0 +1,17 @@
+BEGIN;
+
+-- https://github.com/cms-dev/cms/pull/1378
+ALTER TYPE public.feedback_level ADD VALUE 'oi_restricted';
+
+-- https://github.com/cms-dev/cms/pull/1391
+ALTER TABLE public.contests ADD COLUMN min_submission_interval_grace_period interval;
+ALTER TABLE public.contests ADD CONSTRAINT contests_min_submission_interval_grace_period_check CHECK ((min_submission_interval_grace_period > '00:00:00'::interval));
+
+-- https://github.com/cms-dev/cms/pull/1392
+ALTER TABLE public.contests ADD COLUMN allow_unofficial_submission_before_analysis_mode boolean NOT NULL DEFAULT false;
+ALTER TABLE public.contests ALTER COLUMN allow_unofficial_submission_before_analysis_mode DROP DEFAULT;
+
+-- https://github.com/cms-dev/cms/pull/1393
+ALTER TABLE public.submission_results ADD COLUMN scored_at timestamp without time zone;
+
+COMMIT;