Allow placing datapack structures in Iris worlds (#1225)

* Allow placing datapack structures in Iris worlds

* command for generating configs for datapack structures

* remove the sub dir from the snippet key

core/build.gradle.kts

@@ -83,6 +83,7 @@ dependencies {
     slim(libs.commons.io)
     slim(libs.commons.lang)
     slim(libs.commons.lang3)
+    slim(libs.commons.math3)
     slim(libs.oshi)
     slim(libs.lz4)
     slim(libs.fastutil)