vt: update ucs_width.c using gen_ucs_width.py

vt: update ucs_width.c using gen_ucs_width.py

This replaces ucs_width.c with the code generated by gen_ucs_width.py
providing comprehensive tables for double-width and zero-width Unicode
code points. Also make ucs_is_zero_width() effective.

Note: scripts/checkpatch.pl complains about "... exceeds 100 columns".
      Please ignore.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Link: https://lore.kernel.org/r/20250410011839.64418-6-nico@fluxnic.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>