Pretty-print Native AnimatedNode values

Summary:
For debugging, add prettyPrint method to AnimatedNode classes.

Changelog: [Internal]

Reviewed By: shergin

Differential Revision: D22752292

fbshipit-source-id: ce1f08fc4fd97f38629dd82151c6ea762026c7c9

ReactAndroid/src/main/java/com/facebook/react/animated/ModulusAnimatedNode.java

@@ -34,4 +34,15 @@ import com.facebook.react.bridge.ReadableMap;
           "Illegal node ID set as an input for " + "Animated.modulus node");
     }
   }
+
+  public String prettyPrint() {
+    return "NativeAnimatedNodesManager["
+        + mTag
+        + "] inputNode: "
+        + mInputNode
+        + " modulus: "
+        + mModulus
+        + " super: "
+        + super.prettyPrint();
+  }
 }