feat: support worker_threads

[hyj1991]

Checklist

• npm test passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

Deploy

Description of change

相比 #100 的一些改动：

• 优化了下 Start Mode 的设计和目录结构
• 最低版本限制到 node-v14.x，去除 worker_threads 存在判断
• 部分已知 Bug 修复

另外，node-v18.x 因为底层 API 输出改动，旧的模块测试会大量挂掉，改动评估比较大，故另开 PR 修复，因此本 PR 的 CI 只验证 14 和 16 下的兼容性。

Progress

• impl agent with worker_threads
• impl app worker with worker_threads
• tests and/or benchmarks are included

Reference

• [RFC] egg-cluster 支持 worker_threads 启动模型 egg#4960
• refactor: startMode #100

[hyj1991]

对于 agent 和 app worker 的改造都比较大，会 rebase 成两个 commit，可以先看下 Draft 中 agent 部分局部重构后的逻辑是否还有需要优化的。

app worker 稍后补上，会去掉 cluster 的多端口 send 实现，直接启动 http(s) server，多 worker 模型下依靠 detectPort 自动累加分配，缺点是这个方案就需要固定搭配 nginx 做反向代理了。

cc @fengmk2 @atian25

[codecov]

Codecov Report

Base: 98.96% // Head: 93.51% // Decreases project coverage by -5.44% ⚠️

Coverage data is based on head (fbbcdf3) compared to base (efa8441).
Patch coverage: 86.16% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
- Coverage   98.96%   93.51%   -5.45%     
==========================================
  Files           8       12       +4     
  Lines         580      787     +207     
  Branches      105      119      +14     
==========================================
+ Hits          574      736     +162     
- Misses          6       51      +45     

Impacted Files	Coverage Δ
lib/utils/options.js	97.50% <ø> (ø)
lib/utils/mode/impl/worker_threads/agent.js	67.34% <67.34%> (ø)
lib/utils/mode/impl/worker_threads/app.js	68.67% <68.67%> (ø)
lib/agent_worker.js	96.29% <83.33%> (-3.71%)	⬇️
lib/app_worker.js	98.50% <87.50%> (-1.50%)	⬇️
lib/utils/mode/impl/process/agent.js	92.85% <92.85%> (ø)
lib/master.js	100.00% <100.00%> (+1.28%)	⬆️
lib/utils/manager.js	97.61% <100.00%> (+0.25%)	⬆️
lib/utils/messenger.js	98.33% <100.00%> (-1.67%)	⬇️
lib/utils/mode/impl/process/app.js	100.00% <100.00%> (ø)
... and 2 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[hyj1991]

另外，worker_threads 模式下 nyc 检测不到覆盖率导致的卡点问题也得想办法解决下

[fengmk2]

我发个 major 版本。

[fengmk2]

2.0.0

[fengmk2]

尴尬。。。test/.DS_Store 也上传了

[hyj1991]

尴尬。。。test/.DS_Store 也上传了

我来处理下