Add detailed initData parsing.
Add detailed initData parsing.

We can't do a full parse on older versions because pre 1.5.4 there
seem to be changes in the structure.

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