(How) Could/Should the package be splitted into multiple ones?

[brodybits]

#35 (comment) got me thinking if we should consider splitting this project into smaller parts for DOMParser (seems to be the most popular), XMLSerializer, etc.

As I said in #53, the main package.json entry only exports lib/dom-parser.js at this time.

I just created xmldom org on npm and invited the GitHub collaborators so we can start publishing packages such as @xmldom/parser.

P.S. I did obtain xmldom.org (and .com), in case it may come handy someday.

I think it would be ideal if we can get something ready to publish on js.org sometime.