Update #47 - Singleplayer lag fixes

sources/main/java/com/carrotsearch/hppc/IntLookupContainer.java

@@ -0,0 +1,12 @@
+package com.carrotsearch.hppc;
+
+/**
+ * Marker interface for containers that can check if they contain a given object in at least time
+ * <code>O(log n)</code> and ideally in amortized constant time <code>O(1)</code>.
+ */
+@com.carrotsearch.hppc.Generated(
+    date = "2024-06-04T15:20:17+0200",
+    value = "KTypeLookupContainer.java")
+public interface IntLookupContainer extends IntContainer {
+  public boolean contains(int e);
+}