Added get_ability method
Added get_ability method

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