Add text outline/stroke option

[alexbrazier]

What?

Added more text rendering options to add text stroke

page5.drawText('This text is outlined', {
  x: 30,
  y: 80,
  font: helveticaFont,
  color: hotPink,
  strokeColor: blue,
  strokeWidth: 1.5,
  renderMode: TextRenderingMode.FillAndOutline,
});

page5.drawText('Outline only', {
  x: 30,
  y: 10,
  font: helveticaFont,
  strokeColor: hotPink,
  strokeWidth: 1.5,
  renderMode: TextRenderingMode.Outline,
});

Why?

Issues like this: Hopding#763

Used manually on https://github.com/squareda/pdf-print-marks/blob/main/src/addMetadata.ts#L16 to add outlined text so it's more visible on unknown backgrounds

How?

Testing?

Added test to render some outlined text

New Dependencies?

No

Screenshots

Suggested Reading?

Yes

Anything Else?

Checklist

• I read CONTRIBUTING.md.
• I read MAINTAINERSHIP.md#pull-requests.
• I added/updated unit tests for my changes.
• I added/updated integration tests for my changes.
• I ran the integration tests.
• I tested my changes in Node, Deno, and the browser.
• I viewed documents produced with my changes in Adobe Acrobat, Foxit Reader, Firefox, and Chrome.
• I added/updated doc comments for any new/modified public APIs.
• My changes work for both new and existing PDF files.
• I ran the linter on my changes.

[Sharcoux]

Released in v1.21.1

Thanks a lot for your contribution!