Pass thru twigOptions to compiler regardless of code path

[gavrielrh]

Hi 🙂

Thank you for maintaining this library!

When investigating the cause of some twig templates not behaving the way I'd expect, I found that options I had set in my webpack.config.js weren't actually applying when the twig-loader was creating js output.

Specifically, I was expecting:

rules: [
            {
                test: /\.twig$/,
                loader: "twig-loader",
                options: {
                    twigOptions {
                        autoescape: true
                    }
                },
            }
        ]

to pass through the autoescape: true option to twigjs, such that the resulting js output would resemble the following

var twig = ...,
      tokens = [...],
      template = twig({"autoescape":true,...});
      ...

but instead the autoescape option was completely missing from the generated template.

This PR should remedy it, but I'd be more than happy to know if I'm missing something / if there's a better approach.