dns: add resolveAny support

`dns.resolveAny` and `dns.resolve` with `"ANY"` has the similar behavior
like `$ dig <domain> any` and returns an array with several types of
records.

`dns.resolveAny` parses the result packet by several rules in turn.

Supported types:

* A
* AAAA
* CNAME
* MX
* NAPTR
* NS
* PTR
* SOA
* SRV
* TXT

Fixes: https://github.com/nodejs/node/issues/2848
PR-URL: https://github.com/nodejs/node/pull/13137


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>