chore(db-auth): add acore cms subscriptions sql structure (#182)

Author: Helias

data/sql/db-auth/acore_cms_subscriptions.sql

@@ -0,0 +1,4 @@
+CREATE TABLE IF NOT EXISTS `acore_cms_subscriptions` (
+  `account_name` VARCHAR(255) NOT NULL,
+  `membership_level` INT NOT NULL
+);