chore: add utils/bisect.js to bisect chromium revisions

[aslushnikov]

This patch adds a new utility - utils/bisect.js - that accepts
a range of Chromium revisions and a pptr script and bisects the
range to figure when the script breaks.

The Puppeteer Script, given to the tool, should be exiting
with non-zero code to signify malfunctioning.

Example:

$ node utils/bisect.js --good 577361 --bad 599821 a.js

[aslushnikov]

Screenshot of me bisecting #3463:

Where the a.js is:

const puppeteer = require('.');

(async() => {
  const browser = await puppeteer.launch();

  const page = await browser.newPage();
  let success = true;
  await page.evaluate(async () => {
    const url = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='
    const response = await window.fetch(url);
    const blob = await response.blob();
    const blobURL = URL.createObjectURL(blob);
    // Throws here:
    const response2 = await window.fetch(blobURL);
  }).catch(e => success = false);
  await browser.close();
  process.exit(success ? 0 : 1);
})();

[JoelEinbinder]

Add it to one of the contributing docs?

[aslushnikov]

@JoelEinbinder let me add it later on - turns out I need bisecting again