Added at group greeksAtTroy. I have included achaeans, argives and danaans as subgroups, and should perhaps also include them as akas (I don't know if this would even work). I plan also to include as subgroups the contigent groups of the Greeks as they are described in the CoS, for now.

I am unsure whether or how to add the trojanWar group that already exists, and gives a long list of names from Apollodorus, without sources or citation, and without sorting the participants into subgroups, which I think is useful. I will leave this entry alone for now, but it might be good in the future to edit it to include all the subgroups who participated in the Trojan war, and then edit out from the long list of characters all the characters already included in the subgroups.