Blocks: Feature?

[max0r4axor]

Description

Is your feature request related to a problem?

Ability to spawn items in warm_ocean biomes like Coral reefs, sea pickles, kelp, etc

Describe the solution you'd like us to implement.

you already have mobs: and plants: maybe a blocks:? use similar rules for placing them with water above the block already

Describe alternatives you've considered.

I've tried different ways to make them spawn, but I think its because of the water source above the block that's preventing them from working.

Additional context

maybe a setup like this?
blocks:
TUBE_CORAL: 8:TUBE_CORAL_BLOCK
BRAIN_CORAL: 8:BRAIN_CORAL_BLOCK
BUBBLE_CORAL: 8:BUBBLE_CORAL_BLOCK
FIRE_CORAL: 8:FIRE_CORAL_BLOCK
HORN_CORAL: 8:HORN_CORAL_BLOCK

conversions:
SAND: 8:TUBE_CORAL_BLOCK:SAND
SAND: 8:BRAIN_CORAL_BLOCK:SAND
SAND: 8:BUBBLE_CORAL_BLOCK:SAND
SAND: 8:FIRE_CORAL_BLOCK:SAND
SAND: 8:HORN_CORAL_BLOCK:SAND