rewrite adig using new helpers

[bradh352]

adig previously performed manual parsing of the DNS records. Now it can focus strictly on formatting of output data for printing. It simply iterates across the parsed DNS packet and queries for the RRs, parameters for each RR, and the datatypes for each parameter. adig will now automatically pick up new RRs from the c-ares library due to the dynamic nature.

The adig format also now more closely resembles that of BIND's dig output.

A few more helpers needed to be added to the c-ares library that were missing. There ware a couple of minor bugs and enhancements also needed.

Example:

./adig -t ANY www.google.com

; <<>> c-ares DiG 1.21.0 <<>> www.google.com
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: RCODE, id: 23913
;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: 0; udp: 512	
;; QUESTION SECTION:
;www.google.com.			IN	ANY

;; ANSWER SECTION:
www.google.com.		162	IN	A	142.251.107.99
www.google.com.		162	IN	A	142.251.107.105
www.google.com.		162	IN	A	142.251.107.103
www.google.com.		162	IN	A	142.251.107.147
www.google.com.		162	IN	A	142.251.107.104
www.google.com.		162	IN	A	142.251.107.106
www.google.com.		162	IN	AAAA	2607:f8b0:400c:c32::93
www.google.com.		162	IN	AAAA	2607:f8b0:400c:c32::69
www.google.com.		162	IN	AAAA	2607:f8b0:400c:c32::68
www.google.com.		162	IN	AAAA	2607:f8b0:400c:c32::6a
www.google.com.		21462	IN	HTTPS	1 . alpn="h2,h3"

;; MSG SIZE  rcvd: 276

Fix By: Brad House (@bradh352)