Prefer require over imports

JavaScript pattern

Converts ES6-style import to require statements.

Transform standard require statements

BEFORE
import { something, another } from './lib';
import { assert } from 'chai';
import { config as conf } from 'chai';
import { mixed as mixie, foo } from 'life';
import starImport from 'star';

// no special handling for default. Also, comments get removed.
import defaultImport from '../../shared/default';
AFTER
const { something, another } = require('./lib');
const { assert } = require('chai');
const { config: conf } = require('chai');
const { mixed: mixie, foo } = require('life');
const starImport = require('star');

// no special handling for default. Also, comments get removed.
const defaultImport = require('../../shared/default');