Display indicator data in KEY, VALUE format

[hujun-w-2]

What is the purpose of the change

for #11954
当用户未引入prometheus的时候，使用默认的监控，并且可以通过qos查看全部监控指标和某一类监控指标

Brief changelog

Verifying this change

Checklist

• Make sure there is a GitHub_issue field for the change (usually before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
• Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Check if is necessary to patch to Dubbo 3 if you are work on Dubbo 2.7
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Add some description to dubbo-website project if you are requesting to add a feature.
• GitHub Actions works fine on your own branch.
• If this contribution is large, please follow the Software Donation Guide.

[songxiaosheng]

please fix ci problem

2023-05-09T13:25:40.8188103Z [INFO] 
2023-05-09T13:25:40.8188695Z [ERROR] Failures: 
2023-05-09T13:25:40.8189133Z [ERROR]   CommandHelperTest.testGetAllCommandClass:128 
2023-05-09T13:25:40.8195644Z Expected: iterable with items [<class org.apache.dubbo.qos.command.GreetingCommand>, <class org.apache.dubbo.qos.command.impl.Help>, <class org.apache.dubbo.qos.command.impl.Live>, <class org.apache.dubbo.qos.command.impl.Ls>, <class org.apache.dubbo.qos.command.impl.Offline>, <class org.apache.dubbo.qos.command.impl.OfflineApp>, <class org.apache.dubbo.qos.command.impl.OfflineInterface>, <class org.apache.dubbo.qos.command.impl.Online>, <class org.apache.dubbo.qos.command.impl.OnlineApp>, <class org.apache.dubbo.qos.command.impl.OnlineInterface>, <class org.apache.dubbo.qos.command.impl.PublishMetadata>, <class org.apache.dubbo.qos.command.impl.Quit>, <class org.apache.dubbo.qos.command.impl.Ready>, <class org.apache.dubbo.qos.command.impl.Startup>, <class org.apache.dubbo.qos.command.impl.Version>, <class org.apache.dubbo.qos.command.impl.ChangeTelnet>, <class org.apache.dubbo.qos.command.impl.CountTelnet>, <class org.apache.dubbo.qos.command.impl.InvokeTelnet>, <class org.apache.dubbo.qos.command.impl.SelectTelnet>, <class org.apache.dubbo.qos.command.impl.PortTelnet>, <class org.apache.dubbo.qos.command.impl.PwdTelnet>, <class org.apache.dubbo.qos.command.impl.ShutdownTelnet>, <class org.apache.dubbo.qos.command.impl.EnableDetailProfiler>, <class org.apache.dubbo.qos.command.impl.DisableDetailProfiler>, <class org.apache.dubbo.qos.command.impl.EnableSimpleProfiler>, <class org.apache.dubbo.qos.command.impl.DisableSimpleProfiler>, <class org.apache.dubbo.qos.command.impl.SetProfilerWarnPercent>, <class org.apache.dubbo.qos.command.impl.GetRouterSnapshot>, <class org.apache.dubbo.qos.command.impl.GetEnabledRouterSnapshot>, <class org.apache.dubbo.qos.command.impl.EnableRouterSnapshot>, <class org.apache.dubbo.qos.command.impl.DisableRouterSnapshot>, <class org.apache.dubbo.qos.command.impl.GetRecentRouterSnapshot>, <class org.apache.dubbo.qos.command.impl.LoggerInfo>, <class org.apache.dubbo.qos.command.impl.SwitchLogger>, <class org.apache.dubbo.qos.command.impl.SwitchLogLevel>, <class org.apache.dubbo.qos.command.impl.SerializeCheckStatus>, <class org.apache.dubbo.qos.command.impl.SerializeWarnedClasses>, <class org.apache.dubbo.qos.command.impl.GetConfig>, <class org.apache.dubbo.qos.command.impl.GetAddress>, <class org.apache.dubbo.qos.command.impl.GracefulShutdown>] in any order
2023-05-09T13:25:40.8201547Z      but: not matched: <class org.apache.dubbo.metrics.report.DefaultMetricsReporterCmd>

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.29%. Comparing base (50798b9) to head (f5f88e2).
⚠️ Report is 944 commits behind head on 3.2.

Additional details and impacted files

@@             Coverage Diff              @@
##                3.2   #12273      +/-   ##
============================================
- Coverage     69.65%   69.29%   -0.36%     
+ Complexity      315        2     -313     
============================================
  Files          3439     1613    -1826     
  Lines        162057    66506   -95551     
  Branches      27195     9755   -17440     
============================================
- Hits         112878    46086   -66792     
+ Misses        39258    15967   -23291     
+ Partials       9921     4453    -5468     

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[songxiaosheng]

please fix exception when use metrics_default command

[songxiaosheng]

简化下输出内容，方便后续应用反向解码即可

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
5 Code Smells

11.3% Coverage
0.0% Duplication

[songxiaosheng]

LGTM