Adds ore deposits of these sizes and rarities (per chunk):
Coal: 48, 1/6
Iron: 24, 1/8
Redstone: 28, 1/8
Diamond: 16, 1/12
Gold: 32, 1/6
Lapis Lazuli: 40, 1/5
Emerald: 24, 1/8
Nether gold: 32, 1/4
Nether quartz: 32, 1/5
Ancient debris: 12, 1/24
Copper: 32, 1/7
