Crafter refusing to forget output slots after shift-click

[Jack-McKalling]

Related to #161, considering that it is intended for input slots to forget their filter memory when you shift-click them, the output slots should offer the same.

How to reproduce:

1. Place a crafter of some tier
2. Fill all input and output slots with cobblestone and click the R button
3. Remove all the cobblestone, and reveal that all slots are now cobblestone-filtered
4. Shift-click one of the input slots
   ✔️ the slot becomes unfiltered
5. Shift-click one of the output slots
   ❌ the slot remains filtered for cobblestone

Expected behaviour:
The output slots should be able to forget their filter item in the same way that the input slots do.

Solutions:

• Allow the output slots to behave the same way as the input slots, or
• Make the existing R and F buttons only affect the input slots and add separate ones for the output slots, so you can remember or forget specifically only the output slots, without affecting the input ones, or vice versa