[PATCH v2 0/3] MR3531: mfplat: Use the io queue for bytestream requests.

[Rémi Bernon]

Avoid blocking the default callback queue with file I/O.

--
  v2: mfplat: Use MFASYNC_CALLBACK_QUEUE_IO for byte stream async requests.
      mfplat/tests: Test that BeginRead doesn't use MFASYNC_CALLBACK_QUEUE_STANDARD.
      mfplat/tests: Create the test_callback event in the constructor.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/3531