JEI dragging thing

[Ellpeck]

All filter slots (and the crafting slots in the terminal) should allow the weird item dragging feature that JEI has, where you can drag an item from the JEI item list into the slot instead of having to actually have the item in your inventory

[je-sendra]

If this requires you to modify code related to JEI event handling, please take into account #200, as it may also be possible to do with a similar approach