Fix newInstance() to apply configuration

Author: tadayosi

src/main/java/com/github/tadayosi/torchserve/client/TorchServeClient.java

@@ -23,7 +23,7 @@ private TorchServeClient(Inference inference, Management management, Metrics met
     }
 
     public static TorchServeClient newInstance() {
-        return new TorchServeClient();
+        return builder().build();
     }
 
     public static Builder builder() {

src/main/java/com/github/tadayosi/torchserve/client/model/Response.java

@@ -29,7 +29,7 @@ public void setStatus(String status) {
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + " {" +
+        return getClass().getSimpleName() + " {\n" +
             "    status: " + status + "\n" +
             "}";
     }