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 worker = eval("require")(getWorkerSrc());
        return worker.WorkerMessageHandler;
      }
      await loadScript(getWorkerSrc());
      return window.pdfjsWorker.WorkerMessageHandler;
    };
    loader().then(fakeWorkerCapability.resolve, fakeWorkerCapability.reject);
    return fakeWorkerCapability.promise;
  }
  function createCDNWrapper(url) {
    
    
    
    const wrapper = "importScripts('" + url + "');";
    return URL.createObjectURL(new Blob([wrapper]));
  }
  /**
   * PDF.js web worker abstraction that controls the instantiation of PDF
   * documents. Message handlers are used to pass information from the main
   * thread to the worker thread and vice versa. If the creation of a web
   * worker is not possible, a "fake" worker will be used instead.
   */
  
  class PDFWorker {