new bandwidth_limit_journal table (#606)

controller/store/sql/postgresql/025_v0_4_31_bandwidth_limit_journal.sql

@@ -0,0 +1,19 @@
+-- +migrate Up
+
+drop table account_limit_journal;
+drop table environment_limit_journal;
+drop table share_limit_journal;
+
+drop type limit_action_type;
+create type limit_action_type as enum ('warning', 'limit');
+
+create table bandwidth_limit_journal (
+    id                  serial                  primary key,
+    account_id          integer                 references accounts (id) not null,
+    limit_class         integer                 references limit_classes,
+    action              limit_action_type       not null,
+    rx_bytes            bigint                  not null,
+    tx_bytes            bigint                  not null,
+    created_at          timestamptz             not null default(current_timestamp),
+    updated_at          timestamptz             not null default(current_timestamp)
+);