Polymer Factory Fix
Fix for the polymer factory not being affected by workers performance and always producing 3 polymers / shift.
Only works for new buildings, so dismantle your polymer plants and rebuild them.
It only adds the missing function
function PolymerPlant.OnCalcProduction_Polymers(producer, amount_to_produce) return MulDivRound(producer.parent.performance, amount_to_produce, 100) end
