[1.18.2] Add Blacklist for vertical placement

[RainbowSaber]

Crash in combination with SlabGen,. This mod adds slabs with special behaviour (gravity enabled gravel slabs, Dirt slabs that can grow grass). These slabs both cause missing texture and rendering bugs, aswell as server crashed due to conflicting behaviour. Could you add a server-side blacklist for blocks to be affected by your placement/doubleslab logic?

Crash report: Pastebin