project: Add back NodeHashTable.getNodes() for compatability

runelite-api/src/main/java/net/runelite/api/HashTable.java

@@ -1,5 +1,7 @@
 package net.runelite.api;
 
+import java.util.Collection;
+
 /**
  * A data structure that uses a hash function to compute an index into an
  * array of buckets from which node objects can be quickly obtained.
@@ -13,4 +15,11 @@ public interface HashTable<T extends Node> extends Iterable<T>
 	 * @return the associated node
 	 */
 	T get(long value);
+
+	/**
+	 * Gets a collection of all nodes stored in this table.
+	 *
+	 * @return the nodes stored
+	 */
+	Collection<T> getNodes();
 }