Correctly order added annotations when saving or printing

- the annotations must be rendered in the same order as the chronological one.
- fix a bug in document.js which avoids to read a saved pdf correctly in Acrobat:
  there is no need to reset the xref state: it's done in worker.js once everything
  has been saved.

src/core/document.js

@@ -314,7 +314,6 @@ class Page {
       ...newData.annotations
     );
 
-    this.xref.resetNewRef();
     return objects;
   }