feat(dashboard): 添加启动日志输出功能

- 引入AuthorityRuleController类
- 添加SLF4J日志框架支持
- 在main方法中增加启动成功日志输出
- 添加中文和英文启动完成提示信息

sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/DashboardApplication.java

@@ -15,8 +15,11 @@
  */
 package com.alibaba.csp.sentinel.dashboard;
 
+import com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController;
 import com.alibaba.csp.sentinel.init.InitExecutor;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@@ -27,10 +30,13 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
  */
 @SpringBootApplication
 public class DashboardApplication {
+    private final static Logger logger = LoggerFactory.getLogger(DashboardApplication.class);
 
     public static void main(String[] args) {
         triggerSentinelInit();
         SpringApplication.run(DashboardApplication.class, args);
+        logger.info("Sentinel dashboard start success..........");
+        logger.info("Sentinel dashboard 启动完成..........");
     }
 
     private static void triggerSentinelInit() {