feat[net]: get zookeeper path

net/src/main/java/com/zfoo/net/consumer/registry/IRegistry.java

@@ -55,4 +55,5 @@ public interface IRegistry {
 
     void shutdown();
 
+    String getRootPath();
 }

net/src/main/java/com/zfoo/net/consumer/registry/ZookeeperRegistry.java

@@ -755,4 +755,8 @@ public class ZookeeperRegistry implements IRegistry {
         return StringUtils.format("[path:{}] [stat:{}] [dataSize:{}]", childData.getPath(), childData.getStat(), childData.getData().length);
     }
 
+    @Override
+    public String getRootPath() {
+        return rootPath;
+    }
 }