924c0c60d4
zlib is a standalone third-party component, and deserves its own package rather than living in runtime. For example, this will make future security updates less invasive. This also means there's no dependency on runtime for ports that just require zlib, which is useful for service jails. MFC after: 3 days Reviewed by: bapt, emaste Sponsored by: https://www.patreon.com/bsdivy Differential Revision: https://reviews.freebsd.org/D53058