Provide info on how to fix `Module build failed: Unrecognised input

[jonathanglasmeyer]

This is the classic "loader doesn't match input" case. Webpack spews out Module build failed: Unrecognised input then.

Providing better information on how to fix this might go beyond the scope of webpack-validator, but I want to have the idea somewhere. The problem is that this is a check relying on Webpack output. If I remember right, stats might have this information on error. Perhaps a stats related tool would be the right place for this.

The issue comes up particularly with newbies so it would be cool to provide something little better here.

(from js-dxtools/webpack-validator#84)