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/)
the ``\`` here are also escaping backslashes in the Perl code (the ``{`` and ``}`` needed to be escaped because they are using them as delimiter for the ``qq{}`` syntax for strings)