Hardmode Mining - Rarer Ores

* Adds Diamond Shards, which work like Nuggets for Diamonds

* Adds Copper Nuggets

* Compatible with Hardmode Progression - Extended Tool, Weapon, and Armor Tiers

For Copper, Gold, Iron, and Diamond:

* Adds Rich Ore blocks (4.5 times as valuable) that generate rarely (25% of the spawn rate of normal Ores)

* Regular (non-Rich) Ore Blocks only give 2 Nuggets when smelted or mined

* Supports configurable spawnrate adjustments for all Rich Ores. (1.17 and earlier only)

The default config makes the actual occurrence of raw resources ~40% as much as normal, while still providing plenty of things to find while mining.

1.20.1+ Ores:

1.17.1+ Ores:

1.16.5 Ores: