Console feature: monitoring and details of dubbo-cp

## description

监控控制面进程自身
* dubbo-cp 相关基础信息：连接的registry、kubernetes集群、工作模式、配置文件等
* 单独显示 dubbo-cp 进程的相关 metrics 指标

## components

* backend
* frontend


## depends on
https://github.com/apache/dubbo-kubernetes/issues/78