cmc->erack: timseves cc'ed here wants to have page numbering in Tai Lue digits
(and in other unicode digits e.g. Unicode 5.2 1A81... Tai Tham Hora Digits).

We do have a "Native Numbering" option, but that one would require adding "tai"
or "khb" locales support to OOo and I see that we allow selecting a range of
specific CJK numbering types, e.g. NUMBER_TRADITIONAL_JA, NUMBER_UPPER_ZH_TW and
so on, but we don't list any existing CTL ones.

So, should we support here specific numbering formats to explicitly select the
digits to use for numbering, i.e. basically the list at the bottom of
http://unicode.org/Public/5.2.0/ucd/extracted/DerivedNumericType-5.2.0d5.txt
We have some of these supported through "Native Numbering", and some not. As an
example here's Tai Lue numbering.