Should `Tulku Urgyen` fold like `Lama Zopa` does? (Tibetan prefix titles: Tulku, Khenpo, Geshe, Kyabje, Jetsun)

[derek73]

>>> from nameparser import parse
>>> n = parse("Tulku Urgyen")
>>> n.title, n.given, n.family
('', 'Tulku', 'Urgyen')

None of the Tibetan prefix titles is vocabulary at all, so Tulku reads as a given name and Urgyen as a family name. #346 shipped the renunciate class in 2.3.0 as given-name titles (swami, guru, baba, lama, with Devanagari and Bengali sets beside them), so Lama Zopa reads given Zopa with an empty family. lama came in with that set; the other Tibetan prefix titles did not, and this issue is the question that bundle deferred.

Candidates: Tulku, Khenpo, Geshe, Kyabje, Jetsun.

Two separate questions decide each one, stated in the indic-honorifics entry of docs/design/decisions.md: does the title address by the given name (which is what membership in the given-name-title set means), and does the tradition retain a family name (which decides whether an empty family is the right output)? lama answered yes to both. These five need answering one at a time. A monastic name in the Tibetan tradition replaces the lay name rather than standing beside a surname, which argues for the same answer, but Geshe is a degree and Kyabje is a form of eminence, and a degree that addresses by given name is not obviously the same case as a monastic name.

venerable is the cautionary neighbour: it stays in TITLES only because the traditions using it split on surname retention (Buddhist monastics drop the family name, Anglican archdeacons keep it), and TITLES has no ambiguous subset to say "sometimes" with.

Also unresolved: whether these Latin transliterations are safe as defaults at all, or belong with the opt-in packs of #345 alongside Sri and Pandit. Rinpoche shipped in 2.3.0 as a trailing suffix word, so the postpositional half of Tibetan usage is already covered, and the trailing -la particle needs nothing (it is vocative and glued).

Not in scope: the Devanagari and Bengali borrowings लामा/লামা, which #346 left out as too rare to argue.