package/zic: new host package

This is the zone information compiler, used to compile the time zone
database.

Signed-off-by: Richard Braun <rbraun@sceen.net>
[yann.morin.1998@free.fr: export ZIC for all to use]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>