Update bank files - Fixes #1

This pull request updates the bank files to mirror the files in the original implementation (http://cpansearch.perl.org/src/SBURKE/Text-Unidecode-0.04/lib/Text/Unidecode/)
``\x7f`` needs to be in a double quoted string, otherwise it will not be the right char (``\x...`` sequences are only usable in double quoted strings in PHP)