Webpack 1 (react-create-app) + Eyeglass + Sass Loader

Nobody has claimed this yet.

Hey guys, I've been working on this issue for the better part of a week and am trying to see if anyone else has experience getting Eyeglass to work with Webpack 1 and Sass Loader. Based on my research on this issue, I came across https://github.com/sass-eyeglass/eyeglass/issues/153 and https://github.com/material-components/material-components-web/issues/351, which led me to think that this _should_ be the set up:

```
...
sassLoader: eyeglass({
includePaths: glob.sync('node_modules/@XXXXXXXX/*').map((d) => path.join(__dirname, d)),
eyeglass: {
// eyeglass options
root: paths.scssPath,
file: path.join(paths.scssPath, 'app.scss'),
sassDir: paths.scssPath,
}
}),
...
```
Unfortunately, when i run `npm start`, I get a `Failed to compile` error:
```
Failed to compile.

Error in ./src/scss/app.scss
Module build failed:
@import "@eg-modules-header";
^
File to import not found or unreadable: @eg-modules-header.
Parent style sheet: stdin
in /Users/xxxxx/workspace/xxxxxx/test/src/scss/app.scss (line 82, column 1)
@ ./src/scss/app.scss 4:14-180 13:2-17:4 14:20-186
```
Can anyone share a working example of Eyeglass + Webpack + Sass-loader?

Start with the sassLoader configuration and src/scss/app.scss, then reproduce the failure with npm start. Check the referenced Eyeglass and material-components issues for the Webpack 1 integration context. Done means a working Eyeglass, Webpack, and Sass Loader setup that resolves @eg-modules-header without the compile error.

Written by the indexing model from the issue text.