1.5.0

• feat(RRSIG, SIG, TSIG): added toBind, toTinydns, fromTinydns
• feat(TSIG): added missing setters
• feat(fromTinydns): added to APL, DHCID, HIP, KX, RRSIG, RP, WKS
• feat(CERT): validate mnemonic values
• fix: hardened polynomial regexes #56
• fix(NAPTR): replace polynomial regexp
• test: coverage is at 98% 🎉
• test(NSEC3PARAM): added test cases, better binary parser, better salt
• test(AAAA, APL, CERT, KEY, NAPTR, NSEC3, NSEC3PARAM, RRSIG, SIG, SSHFP, TSIG, URL): added test coverage
• doc(README): updated RR table completion status
• style(es6): use ?. and ?? operators (nullish coalescing) #57
• style(es6): use argument expansion / destructured parameters
• style(es6): substring -> slice #55
• style(es6): use more trim() #55