Use correct EUt multiplier for weak steam parallel machines

[jurrejelle]

Fixes 2 bugs:

1. by only modifying input and output, we didn't modify tickinput and tickoutput, so those would never get parallels
2. on top of that, EUt (or in this case steam) gets applied with a seperate eutModifier() call

Before:

After:

Also spotless'd lol