Allow to construct lazy array on the fly

src/main/kotlin/ru/dbotthepony/mc/otm/registry/LazyList.kt

@@ -16,6 +16,10 @@ class LazyList<T> : AbstractList<T> {
 		this.getters = Array(getters.size) { getters[it] }
 	}
 
+	constructor(size: Int, provider: (Int) -> () -> T) {
+		this.getters = Array(size, provider)
+	}
+
 	override val size: Int
 		get() = getters.size