Improvement for the Smoker GUI and functionality.

GUI Mockup:

Since I felt the Smoker was basically just a super furnace that can only cook food, I came up with a GUI and how I illustrated the improved functionality.

In addition to two more sets of input and result slots, I added the slot called "Racks" which basically serve as pages for the self-contained food and fuel items, making the Smoker a lot more efficient and reliable as well as its own type of utility block.