v2.1.0

[2.1.0] - 2026-08-14

Changed

• AppleTvControlLibrary.All now installs all three independent libraries -
  AppleTvControlLibrary (Companion Link), AppleTvControlLibrary.Mrp (MRP), and
  AppleTvControlLibrary.Discovery (mDNS discovery for both protocols) - instead of only the
  Companion Link and Discovery packages. Bumped to 2.1.0.
• Fixed three XML doc <see cref> references in AppleTvControlLibrary.Mrp (AirPlayMrpConnection,
  IMrpFrameConnection, MrpProtocol) that could not be resolved and produced InvalidCref build
  warnings. Documentation-only change; no public API or behavior change.