feat: impl Host decorator

[killagu]

Checklist

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

Affected core subsystem(s)

Description of change

[codecov]

Codecov Report

Merging #48 (6e7d23f) into master (cd8c3cb) will increase coverage by 0.14%.
The diff coverage is 100.00%.

❗ Current head 6e7d23f differs from pull request most recent head 8d61bb5. Consider uploading reports for the commit 8d61bb5 to get more accurate results

@@            Coverage Diff             @@
##           master      #48      +/-   ##
==========================================
+ Coverage   91.90%   92.05%   +0.14%     
==========================================
  Files         198      199       +1     
  Lines        4040     4115      +75     
  Branches      388      397       +9     
==========================================
+ Hits         3713     3788      +75     
  Misses        326      326              
  Partials        1        1              

Impacted Files	Coverage Δ
core/controller-decorator/index.ts	100.00% <100.00%> (ø)
...re/controller-decorator/src/decorator/http/Host.ts	100.00% <100.00%> (ø)
...corator/src/impl/http/HTTPControllerMetaBuilder.ts	95.83% <100.00%> (+0.08%)	⬆️
...r/src/impl/http/HTTPControllerMethodMetaBuilder.ts	94.44% <100.00%> (+0.07%)	⬆️
...ntroller-decorator/src/model/HTTPControllerMeta.ts	100.00% <100.00%> (ø)
...e/controller-decorator/src/model/HTTPMethodMeta.ts	95.00% <100.00%> (+0.08%)	⬆️
...ontroller-decorator/src/util/ControllerInfoUtil.ts	100.00% <100.00%> (ø)
...re/controller-decorator/src/util/MethodInfoUtil.ts	100.00% <100.00%> (ø)
plugin/controller/lib/RootProtoManager.ts	95.00% <100.00%> (+2.14%)	⬆️
...controller/lib/impl/http/HTTPControllerRegister.ts	100.00% <100.00%> (ø)
... and 3 more

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[killagu]

• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]
• @eggjs/[email protected]

[atian25]

有 bug，在 f416ed7 修复了