Merge one true awk from 2024-01-22 for the Awk Second Edition support

This brings in Unicode support, CSV support and a number of bug fixes.
They are described in _The AWK Programming Language_, Sec

Merge one true awk from 2024-01-22 for the Awk Second Edition support

This brings in Unicode support, CSV support and a number of bug fixes.
They are described in _The AWK Programming Language_, Second Edition, by
Al Aho, Brian Kernighan, and Peter Weinberger (Addison-Wesley, 2024,
ISBN-13 978-0138269722, ISBN-10 0138269726).

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