Support alternative DNS resolvers

[ysbaddaden]

• Chrome implements it's own DNS resolver (Asynchronous DNS resolver) which bypasses the glic resolver (getaddrinfo) and thus bypasses NSSwitch configuration.
• Alternative libc implementations, like musl, don't implement NSSwitch, for simplicity.
• Mac OS X uses per domain resolvers (cf. Pow).

It may be necessary to have an alternative solution to resolve .dev domains locally. Like depending on dnsmasq in packages and installing a custom configuration to resolve .dev domains. Maybe some other idea?