[Greek] Missing lemma: Γυγάδας

[nevenjovanovic]

Greek Morpheus (both in Arethusa and in the Morphology Service) is missing lemma and parses for Γυγάδας (cf. http://dge.cchs.csic.es/xdge/%CE%93%CF%85%CE%B3%E1%BD%B1%CE%B4%CE%B1%CF%82, http://logeion.uchicago.edu/index.html#Γυγάδας). As other names have lemmata (e. g. Δελφοί), this should be added.