[osis-core] use cases

[Harry Plantinga]

> 7)  I am a div that is commentary on Jas.1.19-21
> 
> ?????
> <div osisID="Jas.1.19 Jas.1.20 Jas.1.21">

I think this would be 

<div annotateWork="Jas.1.19-Jas.1.21" annotateType="commentary">