feat: add font feature settings support

[stefanwittwer]

Implements #2155.

This PR adds the fontFeatureSettings style property (see MDN for the CSS equivalent). It takes a list of feature tags, which appends to the default set, or an object to turn on/off individual features, as supported by fontkit.

Why it matters

This allows users to apply any font features supported by a given font, such as tabular numbers, fractions, alternate glyphs, control over ligatures, etc.

Usage

const styles = StyleSheet.create({
  numeric: {
    fontFeatureSettings: ['tnum'],
  }
});

Example

A full example is provided in the examples package. Here's how it looks like:

[changeset-bot]

🦋 Changeset detected

Latest commit: f33ad19

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 10 packages

Name	Type
@react-pdf/textkit	Minor
@react-pdf/layout	Minor
@react-pdf/types	Minor
@react-pdf/render	Patch
@react-pdf/renderer	Patch
@react-pdf/font	Patch
@react-pdf/stylesheet	Patch
@react-pdf/examples	Patch
@react-pdf/e2e-node-cjs	Patch
@react-pdf/e2e-node-esm	Patch

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[stefanwittwer]

I'm of course also happy to extend the documentation site accordingly if this will be merged, I'd just need a pointer as to where I could contribute that.

[bdkopen]

I'm of course also happy to extend the documentation site accordingly if this will be merged, I'd just need a pointer as to where I could contribute that.

The website documentation is kept in the react-pdf-site repository.