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
```
while (this.match) {
      const length = this.queue.fnArray.length;
      this.lastProcessed = (0, this.match.processFn)(this.context, length);
      this.match = null;
      this.state = null;
      
      this._optimize();
    }
  }
  reset() {
    this.state = null;
    this.match = null;
    this.lastProcessed = 0;
  }
}
class OperatorList {
  static get CHUNK_SIZE() {
    return shadow(this, "CHUNK_SIZE", 1000);
  }
  
  static get CHUNK_SIZE_ABOUT() {