Made the soul spikes actually deal extra fall damage when fell on. Current fall damage multiplier is at 5, not sure if that is too much or too little. The damage is done by a FakePlayer, so the mob will also drop loot that only drops from player kills, including experience orbs. (Seems like I need to add an XP Collector block in the future to deal with those). Oh and also did some boilerplate-ish things to soul spikes like adding a recipe, translation, etc

Turns out minecraft decides that the block you fall on is the one that’s 0.2 blocks below you…. The model of the soul spikes (which i don’t really wanna change anymore) has the base at 3 pixels high, which makes it… 0.1875 block high 😮‍💨
Nothing that can’t be solved with a mixin to Entity#getOnPosLegacy that changes the BlockPos it returns if the the block above the “correct” block is soul spikes