Add support for variants in locales

Name: bb33257 Date: 01/27/98


In addition to the variants supported in the current API, many
countries have multiple, locale-specific objects, such as modern
and traditional Calendars (in Japan, China, Thailand, Arabic
countries, etc.), and Collators (Spain, Germany, etc.). With
the new Euro currency, this is also required for Europe. The
current Locale architecture does not provide an extensible
mechanism for accessing such objects. Without this sort of
mechanism, each new requirement from different countries for
additional alternates requires additional API, delaying the
localization of those countries until the next major release.

We need a way to specify multiple locale "variants" that are
orthogonal to each other.

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