Small ICU sources - auto generated by shrink-icu-src.py

This directory contains the ICU subset used by --with-intl=small-icu (the default)
It is a strict subset of ICU 67 source files with the following exception(s):
* deps/icu-small/source/data/in/icudt67l.dat : Reduced-size data file
* deps/icu-small/source/common/uassert.h : Manual backport of ICU-21081

To rebuild this directory, see ../../tools/icu/README.md
