Ore generation only into stone blocks

[fluffyloafie]

Ore blobs can form in stone, deepslate, andesite, diorite, granite and tuff, but as for today, since there is only stone in the world generation, a fix was made to prevent ores to generate into anything else than stone.

However, when the world decoration generation will be handled, here is a reminder to modify the ore generation so it follows the above rule, and can generate in any "stony" block.

This issue is opened as a reminder, and won't be fixed until some time.

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          Don't forget to open an issue for that, because things like that are easily forgor

Originally posted by @STMiki in https://github.com/CubicMC/cubic-server/pull/242#pullrequestreview-1732415116