#i117989# Basic functions Day(), Hour(), Minute(), and Second() return wrong results for dates <1900-1-1

Also extended our spreadsheeet test to search through more columns, open spreadsheets
with macros enabled, and added a test for the the Year(), Month(), Day(), Hour(),
Minute(), and Second() functions comparing Calc's formulas vs StarBasic's runtime functions.

Found-by: villeroy
Patch-by: Damjan Jovanovic