feat: support specific framework & plugin in scanner

[hyj1991]

此 PR 旨在允许通过 scanner 扫描时指定框架和插件列表来启动应用：

• scanner 声明了框架配置，则用户在应用中配置的框架声明不再生效，以 scanner 指定为准
• scanner 声明了插件配置，则会使用这一插件配置以 deepmerge 的方式覆盖掉用户在应用中声明的插件配置

这样设计的目的是给工具链更大的灵活性，比如用户可以无需每次都要显式指定框架，工具链在调用 scanner 构建期指定框架使得应用可以部署到不同的环境中，比如 #111 中提到的需求可以使用此泛用性更好的方式来优雅解决

• close [RFC] Scanner 需要支持指定应用直接的框架 #150
• close [RFC] 支持指定默认的 “Base” Framework #111

[codecov-commenter]

Codecov Report

Merging #158 (31b76c2) into master (df834fc) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #158      +/-   ##
==========================================
+ Coverage   89.25%   89.28%   +0.02%     
==========================================
  Files          51       51              
  Lines        1089     1092       +3     
  Branches      178      179       +1     
==========================================
+ Hits          972      975       +3     
  Misses        117      117              

Impacted Files	Coverage Δ
src/scanner/scan.ts	94.96% <100.00%> (+0.11%)	⬆️

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[noahziheng]

LGTM