Add [libnumtext_]text2num: text to numerals, with analysis (possible flags from num2text), use support mixed in numerals
Add num2text: conversion utility that wraps libnumtext_num2text
Add opposite of libnumtext_remove_separators and numtext-strip
Add man pages and README
Add IPA output support?
Add support for decimal points?
Add support for years, decades, centuries, and millennia?