1.0.0-beta.2

• iOS and macOS: the plugin builds with Swift Package Manager as well as
  CocoaPods.
• Styled ASS subtitles through libass on macOS, iOS and Android.
• Windows decodes H.264 and HEVC with Media Foundation first, FFmpeg's
  D3D11VA second, and ships a slimmer LGPL FFmpeg of our own; HDR is
  tone-mapped on the GPU.
• Linux ships our own LGPL 2.1 FFmpeg (GnuTLS, VAAPI) for x86_64 and
  arm64 in place of BtbN's. Hardware decoding through VAAPI is seen
  working on an Intel GPU.
• A hardware decoder that hangs is given up after a few seconds and
  playback goes on in software; disposing a player never blocks on it.
• An audio device that never starts or stops pulling no longer stalls
  playback: it goes on silently until the device comes back.
• Over an http server without range requests, switching the video or
  audio track resumes at the position instead of failing.
  LycheePlayerValue.seekable says whether seeks can move playback.
• Untagged HD video is read as BT.709; HLS discontinuities play through
  and MPEG-TS seeks land on the keyframe before.
• A hot restart clears the player's event callback, so no event reaches
  a dead isolate.
• Android is 64-bit only (arm64-v8a, x86_64).
• Fixes from fuzzing the MP4, Matroska, MPEG-TS and HLS parsers.