Added smelter functionality + sprite
Also fixed itembox hooks for peeking
Slightly smoothed out magnet force at close distances
energy distribution is FIXED. now I just need to get the projectiles back
projectiles are back and better than ever
added a couple of icons
Merge branch 'dev' of https://github.com/alex-lawson/sb-automation.git into dev-magnets
Added energy consumption to conveyorbelt, jumppad, levitationpad, pump, and reformatted some of the code
Merge branch 'dev-pipes' into dev
Merge branch 'dev-magnets' into dev