- verify-table-integrity.py

  BUG! Duplicated characters in both the zero-width and wide eastasian
  tables. This program checks for this exits non-zero in such cases,
  and has been added to the chain of commands in tox. one example output:

       ERROR verify-table-integrity.py:86 value 0x302a in table_name=WIDE_EASTASIAN version=10.0.0 is duplicated in other_table_name=ZERO_WIDTH from inclusive range 0x3000-0x303e

  The way wcwidth() is written, it will always return zero width.

  The discovery with this script is that there are characters defined
  as both zero width (by category code like Me, Mn, and upcoming
  Cf in derived category txt) and zero-width "wide" characters (property 'W' or
  'F' in east asian wide txt).

- new automatic tests for balinese, kr jamo, zero-width emoji,
  devanagari, tamil, kannada. Until bin/update-tables.py is amended to
  correct the zero and wide character tables, these are failing.

- added pytest-benchmark plugin, example use:

  tox -epy312 -- --verbose --benchmark-save=original
  tox -epy312 -- --verbose --benchmark-compare=.benchmarks/Linux-CPython-3.12-64bit/0001_original.json