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
```
builtInCMapCache: catalog.builtInCMapCache,
          standardFontDataCache: catalog.standardFontDataCache,
          globalImageCache: catalog.globalImageCache,
          nonBlendModesSet: catalog.nonBlendModesSet,
          xfaFactory: this.xfaFactory,
        })
      );
    }
    const promise =
      linearization && linearization.pageFirst === pageIndex
        ? this._getLinearizationPage(pageIndex)
        : catalog.getPageDict(pageIndex);
    return (this._pagePromises[pageIndex] = promise.then(([pageDict, ref]) => {
      return new Page({
        pdfManager: this.pdfManager,
        xref: this.xref,
        pageIndex,
        pageDict,
        ref,
        globalIdFactory: this._globalIdFactory,
        fontCache: catalog.fontCache,
        builtInCMapCache: catalog.builtInCMapCache,
        standardFontDataCache: catalog.standardFontDataCache,
        globalImageCache: catalog.globalImageCache,
        nonBlendModesSet: catalog.nonBlendModesSet,
        xfaFactory: null,
      });
    }));
  }
  checkFirstPage() {