Compare similar weapons of different type in inventory/trade screen

[NWCtim]

Instead only having the equipped item compare window pop up when comparing items of the exact same type (e.g. one-hand sword to one-hand sword; two-hand axe to two-hand axe, etc), it should pop when a weapon of the same usage type is hovered over, e.g. one-hand sword to one-hand axe. Even in the case where a player would equip themselves or a companion with two different two/one-hand weapons (etc), more readily available comparison information is always nice.