feat: add URLPattern API

[lucacasonato]

This adds support for the URLPattern API.

The API is added in --unstable only, as it has not yet shipped in any
browser. It is targeted for shipping in Chrome 95.

Spec: https://wicg.github.io/urlpattern/

Closes #11619

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TODOs:

• Add JSDoc comments to lib.deno_url.d.ts
• Add a TypeScript unit test to validate typings.

[lucacasonato]

The final failing test is denoland/rust-urlpattern#12. We are waiting on a spec decision. This can be landed as is though.

[bartlomieju]

LGTM, minus one typo. I don't see this PR doing any hackery with serde_v8 you mentioned; has this been worked around in some way?

[crowlKats]

LGTM, minus one typo. I don't see this PR doing any hackery with serde_v8 you mentioned; has this been worked around in some way?

Yes, this isnt addressed yet, but we can work around it using the regress crate instead of the normal regex one

[bartlomieju]

LGTM, minus one typo. I don't see this PR doing any hackery with serde_v8 you mentioned; has this been worked around in some way?

Yes, this isnt addressed yet, but we can work around it using the regress crate instead of the normal regex one

Sounds good, thanks for explanation.