Add support for build times and basic unit classifiers.
Add support for build times and basic unit classifiers.

ggtracker/sc2reader,vlaufer/sc2reader,StoicLoofah/sc2reader,GraylinKim/sc2reader,GraylinKim/sc2reader,StoicLoofah/sc2reader,vlaufer/sc2reader,ggtracker/sc2reader