revised item (wearables without bonus stats) window attributes

revisions, removed inventory lines, changed volume to int.
cost and faction restriction are for display (placeholding) only, faction requirements not checked by system yet when equiping and have no actual effect.  don't think cost on the item ever had an effect since I think that would be the vendor controlling the cost instead of the item.
skill requirements to equip ace helmets not included since the skills for ace/master pilot are not in yet.