feat: sane SOA ttls

feat: handle update queries for _acme-challenge

feat: tsig

feat: handle CAA queries (poorly)

feat: custom TsigProvider implementation

feat: stub AAAA

feat: DNSSEC

feat: handle root A

feat: config rearchitect, lower qName early

chore: format

feat: modified msgAcceptFunc to facilitate dynamic updates

feat: answer TXT queries for _acme-challenge

feat: zoneOf function

fix: set NS ttl

feat: stub CNAME queries

feat: initial NS and SOA responses

feat: improve logging in parseQuery

feat: log unsupported Opcodes

feat: serve dns on tcp too

chore: update mod name and dependencies