Addition of subclasses of meal found in NCIT #20
Description
Created another issue for clarity, see #11
Also, would you consider implementing the breakfast / lunch / supper meals mentioned in NCIT Meal: http://purl.obolibrary.org/obo/NCIT_C80248 ?
- add subclasses of meal
- reference 'see also' or 'synonim" or even an equivalence, classes in ONS to classes in NCIT