make some improvements to CSS modules

[Luke-zhang-04]

• remove .module from [name] placeholder
  • The class names would come out like myFile_module_className__hash, when they should look like myFile_className__hash
• feat: add modules.include option
  • options.modules overrides the regex/function from options.autoModules and makes everything a CSS module when I only want to change the scoped name.
  • I probably didn't approach this in the best way, but modifying existing options could create a breaking change.