Support for Vue SFC

Add support for parsing class attributes of Vue Single File Components (*.vue) by @DanSnow

Make sure to adapt your .eslintrc file, here is an example:

    "overrides": [
      ...
      {
        "files": ["*.vue"],
        "extends": ["plugin:tailwindcss/recommended"],
        "parser": "vue-eslint-parser"
      }
    ]

You. may also need to npm i vue-eslint-parser --save-dev

This only works for plain text at this time, it does not works with conditional class or calls to 3rd party helpers like ctl, clsx...