Issue with AnnotationOptions type in 2.2.0 version

[dperera-innerspec]

With the latest version of AnnotationOptions type the library is requiring an 'init' function property. This function seems to be part of an internal class of some sort when creating a Box type annotation.

This same issue is not happening in earlier versions so i am stuck at version 2.1.2 until it is fixed.

[stockiNail]

@dperera-innerspec thank you! PR to fix is already submitted: #867