Adds the following to item pages in the handbook:

• Using the scroll wheel while hovering over a recipe or item with several variants lets you flip between them freely.
• If crafting grid is also open, adds buttons to automatically add the required ingredients to the crafting grid (add one craft and add max).
• Displays a small wrench icon on ingredients that are not consumed by the recipe. Also adds how much durability will be used to the tooltip.

Auto fill also uses items from any opened chests unless shift is held.

Any suggestions or bug reports are welcome.