Add the annotation name to the onAnnotationsChanged payload when annotation is removed on iOS

[radazzouz]

This is the iOS implementation for #283

---

Details

This is the payload that we send on iOS for onAnnotationsChanged when an annotation is removed:

{
  change: 'removed',
  annotations: [
    {
      uuid: '2D28DCB5-002B-4B5A-843F-F142D618838F',
      name: '2D28DCB5-002B-4B5A-843F-F142D618838F',
    }
  ]
}

An this is the Android payload:

{
  change: 'removed',
  annotations: [
    {
      name: '2D28DCB5-002B-4B5A-843F-F142D618838F',
    }
  ]
}

Acceptance Criteria

• When approved, right before merging, rebase with master and increment the package version in package.json, package-lock.json, and samples/Catalog/package.json (see example commit: 1bf805f).
• Create a new release (and tag) with the new package version (see https://github.com/PSPDFKit/react-native/releases).