feat: support cssModulesExcludes with RegExp

[xiaohuoni]

Close: #1509

[lihroff]

感觉还是有点问题，好像是被前置的校验挡住了，另外对于文件的处理建议使用glob会比正则更直观。

[NicoKam]

umi version: 2.8.15

.umirc.js:

  cssModulesExcludes: [
   /src[\\/]components[\\/]PropsEditor[\\/]PropsEditor.less/
  ],

Error: 配置 cssModulesExcludes 校验失败, The "path" argument must be of type string. Received type object

[ycjcl868]

不起效

[tonypig93]

用不了

The "path" argument must be of type string. Received type object

[big-camel]

提了 一年了，还用不了正则吗？

[Jeff-Tian]

ping

[sorrycc]

@itellyou-com @Jeff-Tian 一年了没啥人反馈，说明需求不强，有需要可以提 PR 加上。