Better Bench Tiers

The Salvage Bench and the Furnace were too Slow. So I fixed it!

Now, with different resources, Copper, Iron, Thorium, Cobalt and Adamantite, you can Upgrade the Furnace to tier 3, increasing speed up to 50% and capacity.

You can also Upgrade the Salvage Bench using various materials to tiers: 2 3 and 4! Also Increasing Speed and capacity. +25% Speed per level.

I'm planning to add more Bench tiers upgrades, but for now, that's it.