Added the message catalog and the fonts to this package to keep things separated.TODO: The message key "Please_enter_the_captcha" is not used on upstream code and could be deleted.maybe, something from the downstram captcha code was not provide upstream.
Factored out captcha package from acs-templating, since it introduces too many external dependenciesFurthermore, as it is, this does not work under macOS (and probably not on *BSD, or windows)and breaks regression test.
