v2.2.0

[2.2.0] - 2026-08-14

Changed

• Converted allocation-heavy hex decode, DNS TXT/name parsing, mDNS flag-string parsing, and
  HTTP/RTSP header parsing to use Span<T>/ReadOnlySpan<T> instead of Substring and per-value
  byte-array copies (AppleTvControlLibrary.Discovery, AppleTvControlLibrary HAP layer, and
  AppleTvControlLibrary.Mrp). This is an internal efficiency pass only; no public API or wire
  behavior changed, and all existing tests pass unmodified on both net472 and net10.0.