Add support for missing record types (supported in NSD)

[k0ekk0ek]

Originally simdzone started out as just a replacement zone parser in NSD. While it's become a project of it's own, we still want to replace NSD's current parser. Therefore, we must support at least all RRTYPEs supported by NSD.

RRTYPEs:

• PTR
• NXT (#104)
• KEY
• SIG (#104)
• SRV
• CERT (#88)
• LOC (#100)
• MD (easy)
• MF (easy)
• MB (easy)
• MG (easy)
• MR (easy)
• WKS (#97)
• HINFO
• MINFO
• AFSDB
• RP
• X25
• ISDN
• RT
• NSAP (#89)
• NSAP_PTR (#89)
• PX (#90)
• GPOS (#101)
• EID (NOT a standard)
• NIMLOC (NOT a standard)
• NAPTR
• KX
• DNAME
• APL (#102)
• DLV
• SSHFP
• SPF
• IPSECKEY (#92)
• DHCID
• TLSA (#84)
• URI
• NID (#91)
• L32
• L64
• LP
• EUI48 (#83)
• EUI64 (#83)
• CAA
• CDS
• CDNSKEY
• OPENPGPKEY (#85)
• CSYNC (#103)
• ZONEMD (#86)
• AVC
• SMIMEA (not in NSD, presentation same as TLSA) (#84)
• SVCB (#112)
• HTTPS (#112)
• HIP (#105)

[k0ekk0ek]

SVCB/HTTPS progress on #16.

[k0ekk0ek]

With the addition of SVCB and HTTPs, simdzone now supports all RRTYPEs (plus extra) that NSD does. There's very likely still bugs, but we'll sort those out separately. Closing this issue.