This way we can use it both in Webpack and TS builds.

The end goal is to fix our types to make typedoc generated docs as
useful as possible.

The generated docs will be published to GH pages on every push.

* fix(events): unify events to a single EventManager type, add support for single typescript declaration

* fix(lint): fix lint

* fix(events): fix incorrect instatiation

* fix(events): clean up redundant methods

* fix(events): keep EventEmitter name, alias NodeEventEmitter

* fix(events): fix loose reference

* fix(EventEmitter): remove on/off alias as redundant

* fix(RTCUtils): bring event handlers under class to use same event emitter

* fix(RTCUtils): fix lint

Do it on the prepack step, so it gets built before we upload the build
artifact.

Include a type comparison utility to compare auto-generated vs hand-crafted
types.

Thanks @sapkra for working on these! ❤️

This is just the stepping stone towards the goal of eventually having
lib-jitsi-meet fully written in JS.

- introduce ts-loader for webpack
- webpack will continue generating the UMD bundle
- tsc will generate an ES6 module
- output all bundles to dist/

Build as follows to build (production) bundle size stats:

npx webpack -p --progress --analyze-bundle

Then open the report:

npx webpack-bundle-analyzer stats.json

In order to include browser capabilities in RTCBrowserType I needed to
refactor RTCBrowserType.