runelite-api: add getActions, imposterIds, and imposter to ObjectComposition

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

@@ -28,7 +28,13 @@ public interface ObjectComposition
 {
 	String getName();
 
+	String[] getActions();
+
 	int getMapSceneId();
 
 	int getMapIconId();
+
+	int[] getImpostorIds();
+
+	ObjectComposition getImpostor();
 }

runescape-api/src/main/java/net/runelite/rs/api/RSObjectComposition.java

@@ -34,6 +34,7 @@ public interface RSObjectComposition extends ObjectComposition
 	String getName();
 
 	@Import("actions")
+	@Override
 	String[] getActions();
 
 	@Import("mapSceneId")
@@ -43,4 +44,12 @@ public interface RSObjectComposition extends ObjectComposition
 	@Import("mapIconId")
 	@Override
 	int getMapIconId();
+
+	@Import("impostorIds")
+	@Override
+	int[] getImpostorIds();
+
+	@Import("getImpostor")
+	@Override
+	RSObjectComposition getImpostor();
 }