TT#145801 extend billing.journals

Extend billing.journals with fields required for RBAC for journals.
Added fields:
  - reseller_id to limit reseller admins to their reseller
  - user_id to reference admins or subscribers
  - tx_id unique transaction id
  - role defining the access scope the entry was created with

Change-Id: Id4a093a3ea668914d6f3214f79955d89b58263db

db_scripts/diff/15701.down

@@ -0,0 +1,11 @@
+USE billing;
+
+ALTER TABLE journals
+DROP FOREIGN KEY `j_resellerid_ref`,
+DROP KEY `resellerid_idx`,
+DROP KEY `userid_idx`,
+DROP KEY `txid_idx`,
+DROP COLUMN `reseller_id`,
+DROP COLUMN `user_id`,
+DROP COLUMN `tx_id`,
+DROP COLUMN `role`;

db_scripts/diff/15701.up

@@ -0,0 +1,11 @@
+USE billing;
+
+ALTER TABLE journals
+ADD COLUMN `reseller_id` int(11) unsigned DEFAULT NULL,
+ADD KEY `resellerid_idx` (`reseller_id`),
+ADD COLUMN `user_id` int(11) unsigned DEFAULT NULL,
+ADD KEY `userid_idx` (`user_id`),
+ADD COLUMN `role` varchar(64) DEFAULT NULL,
+ADD COLUMN `tx_id` varchar(36) DEFAULT NULL,
+ADD UNIQUE KEY `txid_idx` (`tx_id`),
+ADD CONSTRAINT `j_resellerid_ref` FOREIGN KEY (`reseller_id`) REFERENCES `resellers` (`id`);