Report track-fd errors for fd used which was not opened or already closed

Report track-fd errors for fd used which was not opened or already closed

Add (optional) pathname, description, where_closed and where_opened
fields to struct FdBadUse. Print those fields when set in fd_pp_Error.

Add a new function ML_(find_OpenFd) that provides a recorded OpenFd
given an fd (or NULL when the fd was never recorded).

In ML_(fd_allowed) when using a file descriptor use ML_(find_OpenFd)
to see if the fd was ever created, if not create an "was never
created" FdBadUse error. If it was created, but already closed create
an "was closed already", filling in as much details as we can.

Add none/tests/use_after_close.vgtest to test, already closed, never
created, invalid, double (double) close and invalid close issues.

Adjust error message in none/tests/fdbaduse.stderr.exp.

https://bugs.kde.org/show_bug.cgi?id=493418