Added ItemDataLanguage, ItemDataType and ItemField enums. Added ItemType.Material and ItemType.Unknown. Reorganized the ItemFlags enum.
Added ItemDataLanguage, ItemDataType and ItemField enums.
Added ItemType.Material and ItemType.Unknown.
Reorganized the ItemFlags enum.

graspee/polutils,Vicrelant/polutils,graspee/polutils,Vicrelant/polutils