Port of package locator of datekeys-go at spec-v0.12 (spec §43 to §44.1),
with the checks, the order, the codes and the texts of Go: the data of the
extension (parseInfo, infoExtension), the registry of locator.Standard,
the addresses with every rule of §44.1 (checkURI, addressHost,
usableAddresses), the IP addresses as netip reads them, compared byte by
byte with the IANA blocks, checkResolvedIp as datekeys-dart has it, the
plaintext with its padding, and the rest in its host.
scripts/locator-go-vectors.go, the generator of datekeys-dart stage 7a
with the seeds of this repository, writes testing/locator-uris.json and
locator-vectors.json from an export of datekeys-go at spec-v0.12.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
