The API update

Since I removed the to option, so I decided to make a major release.

Anyways, now you can provide all the processor options to the postcss instance via processorOpts. For example:

const hook = require('css-modules-require-hook');
const lessParser = require('postcss-less').parse;

hook({
  extensions: '.less',
  processorOpts: {parser: lessParser},
});

Also, if you need to provide the to options, you may use processorOpts for that:

hook({
  processorOpts: {to: '..'},
});