Return status clone from OutState

src/main/java/info/hkzlab/dupal/analyzer/palanalisys/OutState.java

@@ -5,7 +5,7 @@ public class OutState {
     public final static int IDX_IO = 1;
     public final static int IDX_HIZ = 2;
 
-    public final int[] status;
+    private final int[] status;
     private final OutLink[] links;
 
     public OutState(int o_state, int io_state, int hiz_state, int totLinks) {
@@ -13,6 +13,10 @@ public class OutState {
         links = new OutLink[totLinks];
     }
 
+    public int[] getStatus() {
+        return status.clone();
+    }
+
     public OutLink getOutLinkAtIdx(int idx) {
         return links[idx];
     }