Add more getters in SearchResponse & add normalize method in unittest

src/main/java/io/milvus/client/MilvusClient.java

@@ -3,29 +3,10 @@ package io.milvus.client;
 public interface MilvusClient {
 
     String clientVersion = "0.1.0";
-
-    /**
-     * @return the current Milvus client version
-     */
     default String clientVersion() {
         return clientVersion;
     }
 
-    /**
-     * Connects to Milvus server
-     * @param connectParam the <code>ConnectParam</code> object
-     *                     <pre>
-     *                     example usage:
-     *                     <code>
-     *                         ConnectParam connectParam = new ConnectParam.Builder()
-     *                                                                     .withHost("localhost")
-     *                                                                     .withPort("19530")
-     *                                                                     .build();
-     *                     </code>
-     *                     </pre>
-     * @return <code>Response</code>
-     * @see ConnectParam
-     */
     Response connect(ConnectParam connectParam);
 
     boolean connected();