fcntl module adding the `F_KINFO` constant for FreeBSD (from 13.1 release)

[devnexen]

Feature or enhancement

To get a similar feature as the macOS F_GETPATH part.

Linked PRs

• gh-99987: fcntl add the F_KINFO constant for FreeBSD 13.1 and onwards. #99988

[erlend-aasland]

Superseded by #114321

[serhiy-storchaka]

Not completely. #114321 implements the simple part. I'm going to implement some helpers which will make these constants usable, and than we can add more specialized API for this issue.