[pdfjs-dist] 'worker-loader' requires 'webpack' as peerDependency

[MichaelDeBoey]

When I install pdfjs-dist in a clean repo, I get the following warning:

npm WARN [email protected] requires a peer of webpack@^2.0.0 || ^3.0.0 but none is installed. You must install peer dependencies yourself.

Please add webpack (at least) to the peerDependencies (dependencies can be as well, but will make this one bloated), since this is a peerDependency of worker-loader.