getaddrinfo() improvements

[Geertiebear]

As discussed on discord there are numerous improvements to be made to our current implementation of getaddrinfo()

• [ ] Handle DNS ipv6 records
• [x] Parse /etc/resolv.conf for the nameserver
• [x] Parse /etc/hosts and use it in name resolution
• [x] Parse /etc/services to implement the services part of the function
• [x] Handle CNAME records correctly
• [ ] Handle hints properly
• [ ] Handle all flags properly
• [ ] Sort output list according to RFC 3484