test: use git node wpt to pull WPT into test/fixtures

This patch uses the `git node wpt` command in node-core-utils
to initialize `test/fixtures/wpt` with a subset of the Web
Platform Tests (https://github.com/web-platform-tests/wpt),
including:

- console tests
- url tests
- interfaces (.idl WebIDL files)
- test harness located in `resources`, including the WebIDL
  parser

Also initializes the README.md, LICENSE and versions.json in the
`test/fixtures/wpt`.

In later patches, we will use these files to run WPT
and move away from the manually maintained copy-pasted files
in `test/parallel/test-whatwg-*`.

https://github.com/nodejs/node-core-utils/blob/master/docs/git-node.md#git-node-wpt

PR-URL: https://github.com/nodejs/node/pull/24035
Refs: https://github.com/nodejs/node/issues/23192


Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>