Add updateAnnotation to D2Reader instance properties

[MooDySmiles]

It would be helpful if there would be the possibility to call annotationModule.updateAnnotation directly from the d2Reader instance returned from D2Reader.load() method.

In my use case, I use a custom web component to show a modal where the user can type the note to add to an annotation, and such modal doesn't work like the SweetAlert library in the example of this repo, so I can't suspend the execution of addAnnotation or addCommentToAnnotation callback defined in the annotations.api config property.

Adding a public direct call to annotationModule.updateAnnotation (like it is for addAnnotation and `deleteAnnotation) would help me correctly handle the flow of my work.