dns: add `verbatim` option to dns.lookup()

When true, results from the DNS resolver are passed on as-is, without
the reshuffling that Node.js otherwise does that puts IPv4 addresses
before IPv6 addresses.

PR-URL: https://github.com/nodejs/node/pull/14731
Ref: https://github.com/nodejs/node/issues/6307


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>