feat: allow passing `htmlDom`

[masylum]

This allows customizing the parser (using htmlparser2 instead of default's more strict and slower parse5). Also, if you do any post-processing, you can reuse the object and avoid parsing twice (expensive)

[Kikobeats]

Thanks for this!

Whe you pass htmlDom keep in mind you should to also take care about the url for resolving relative URLs:

const { load } = require('cheerio')
const htmlDom = load(html, { baseURI: url })