Add join_channel permission for moderators, server admins, and tournament directors

Author: Askaholic

migrations/V87__permissions_join_channel.sql

@@ -0,0 +1,13 @@
+INSERT INTO group_permission (technical_name, name_key) VALUES('ADMIN_JOIN_CHANNEL', 'permission_group.admin_join_channel');
+
+INSERT INTO group_permission_assignment (group_id, permission_id)
+  SELECT user_group.id, group_permission.id 
+  FROM user_group, group_permission
+    WHERE 
+      user_group.technical_name in (
+        'faf_moderators_global', 
+        'faf_server_administrators',
+        'faf_tournament_directors'
+      )
+      AND group_permission.technical_name = 'ADMIN_JOIN_CHANNEL';
+