win32/filesystem: use CreateFileW with FILE_SHARE_DELETE in vlc_open()

So the file can be renamed while we read it ¹.

The file permission creation mode is not used anymore. Only 0666 and 0600 were used.

Fixes #19700.

1. https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew#file_share_delete ↩

changed milestone to %4.0

added Component::Core Platform::Windows desktop Status::BackportCandidate labels

Why not using https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/sopen-wsopen?view=msvc-170 in vlc_open instead of forking the module?

I need to do a bit more tests on the writing side.

added MRStatus::InReview label

added 1 commit

• 091bb687 - win32/filesystem: use CreateFileW with FILE_SHARE_DELETE in vlc_open()

Compare with previous version