Access to Electron's require

Hello,

I'm trying to call `require` on an absolute path from the main process.
Something like this:
```js
require('/Users/john/Library/Application Support/app/app-plugin-foobar')
```

But, as webpack is parsing the require, I get an error as webpack is not allowing absolute paths:

```
Error: Cannot find module '/Users/john/Library/Application Support/app/app-plugin-foobar'
at webpackEmptyContext ...
```

I'm not sure if I'm supposed to use `IgnorePlugin`, `externals` or `ContextReplacementPlugin`. Couldn't we have a `require.native('path')` that would bypass webpack ?

Thanks