Update unit_info.json
Update unit_info.json

This hasn't been updated in a while. I'm sure the costs for things are
out of date as well. But for now I'm adding in new units so that the
'is_army', 'is_worker' and 'is_building' start working again.

ggtracker/sc2reader,StoicLoofah/sc2reader,StoicLoofah/sc2reader,ggtracker/sc2reader