Interface types for simple* and permission* packages.

• Redis: permissions2 and simpleredis
• Bolt: permissionbolt and simplebolt
• MariaDB/MySQL: permissionsql and simplemaria
• PostgreSQL: pstore and simplehstore
• SQLite: simplesqlite and permissionsqlite

• The latest release is the v1.5.4 tag. The v1* versioning scheme was put to use since this is what go mod seems to prefer.
• The 2.0 tag is kept so that existing packages don't break, though.

• Version: 1.5.4 (The tag is v1.5.4 to work better with go mod. The API has version 5.4.)
• License: BSD-3
• Author: Alexander F. Rødseth <xyproto@archlinux.org>