ValuePerWeight new column, and improved Filter box.

I would like to request a new column to sort items:
Value Per Weight

why? it let us decide better what to destroy so we can stay for longer on the battlefield having fun fighting.

How it works:
hammer weights 5, values 100, V/W = 20, so a heavy low value trashable thing.

I could be more complex tho: Value per weight per durability (as it also affects final sell price)

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I would like that the filter box could optionally accept Regex if possible.
But, at least that it could optionally filter by full items' descriptions, so we could fastly find stuff we want instead of hovering the mouse and read each description.