Update SteamcraftRecipes.java

fixed an issue where if I throw a gold chest piece(takes 8 ingots to make) into the crucible I can then pour that out in to the mold and get 9 ingots.[chestplates were set to give 81 ingots instead of the 72 they should have... which I have fixed]
Merge pull request #112 from ChrisLangley/patch-1

Update SteamcraftRecipes.java