Configuration:
- PDF.js version: 2.0.550

Steps to reproduce the problem:
1. Render document in SVG mode `renderMode="svg"`

What is the expected behavior? (add screenshot)
Rendering annotations same way as they rendered on canvas

What went wrong? (add screenshot)
```
Warning: Unimplemented operator beginAnnotations
Warning: Unimplemented operator endAnnotations
```
const { data } = await AnnotationFactory.create(
        xref,
        choiceWidgetRef,
        pdfManagerMock,
        idFactoryMock
      
      expect(data.annotationType).toEqual(AnnotationType.WIDGET
      expect(data.readOnly).toEqual(true
      expect(data.hidden).toEqual(false
      expect(data.combo).toEqual(true
      expect(data.multiSelect).toEqual(true
    }
    it("should render choice for printing", async function () {
      const choiceWidgetRef = Ref.get(271, 0
      const xref = new XRefMock([
        { ref: choiceWidgetRef, data: choiceWidgetDict },
        fontRefObj,
      ]
      const task = new WorkerTask("test print"
      partialEvaluator.xref = xref;
      const annotation = await AnnotationFactory.create(
        xref,
        choiceWidgetRef,
        pdfManagerMock,
        idFactoryMock
      
      const annotationStorage = new Map(
      annotationStorage.set(annotation.data.id, { value: "a value" }
      const appearance = await annotation._getAppearance(
        partialEvaluator,