localedata: Reorganize Unicode LC_CTYPE inclusion.

The commit does the following things:

* Move non-transliteration Unicode generated data to i18n_ctype.
* Copy the i18n_ctype data into i18n and add transliteration.

In the future, any locale which needs Unicode LC_CTYPE data can
also just use `copy i18n_ctype` and get the base character classes
and maps without transliteration.

Tested by compiling all the locales and my prototype C.UTF-8 which
uses it.

Signed-off-by: Carlos O'Donell <carlos@redhat.com>