message: refactor(docs-infra): refactors `createOverviewDump`
  This commit removes the dependency on the `lodash` module and refactors
  the `createOverviewDump` method.
  PR Close
diff: -var _ = require('lodash');
  -
  module.exports = function createOverviewDump() {
  return {
  $runAfter: ['processing-docs'],
  $runBefore: ['docs-processed'],
  $process: function(docs) {
  - var overviewDoc = {
  + const overviewDoc = {
  id: 'overview-dump',
  aliases: ['overview-dump'],
  path: 'overview-dump',
  outputPath: 'overview-dump.html',
  modules: []
  };
  - _.forEach(docs, function(doc) {
  +
  + docs.forEach(doc => {
  if (doc.docType === 'package') {
  overviewDoc.modules.push(doc);
  }
  });
  +
  docs.push(overviewDoc);
  }
  };
  