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
```
for (const input of inputs) {
        dict.set("QuadPoints", input
        expect(getQuadPoints(dict, rect)).toEqual(null
      }
    }
    it("should process quadpoints in the standard order", function () {
      rect = [10, 10, 20, 20];
      dict.set(
        "QuadPoints",
        [10, 20, 20, 20, 10, 10, 20, 10, 11, 19, 19, 19, 11, 11, 19, 11]
      
      expect(getQuadPoints(dict, rect)).toEqual([
        [
          { x: 10, y: 20 },
          { x: 20, y: 20 },
          { x: 10, y: 10 },
          { x: 20, y: 10 },
        ],
        [
          { x: 11, y: 19 },
          { x: 19, y: 19 },
          { x: 11, y: 11 },
          { x: 19, y: 11 },
        ],
      ]
    }
    it("should normalize and process quadpoints in non-standard orders", function () {
      rect = [10, 10, 20, 20];
      const nonStandardOrders = [