Adds 3 tiers of bloomeries made with refractory bricks.

Tier 1 bases/chimneys have a 5% chance to lose one brick when mined.

Tier 2 bases/chimneys have a 1% chance to lose one brick when mined.

Tier 3 bases/chimneys always drop all bricks when mined.

Bases/Chimneys of different tiers can be mixed, but cannot be used with vanilla bloomeries.

This is a beta release. I haven't found any bugs and there's some texture work I need to fix up but if you encounter any bugs please let me know.

Big thanks to Spear and Fang + l33tman for all their help with this mod.