incompatible (date)time uno struct change coming up in master

[Lionel Elie Mamane]

Hi,

https://gerrit.libreoffice.org/2783/ now compiles on the three buildbot
platforms. If you want to weigh in before I push, now is the time.

It expands precision of time, datetime and duration UNO structs to
nanosecond (from centisecond or millisecond, respectively), and of
LibreOffice time-related structures in general.

-- 
Lionel