Summary view > Do not display empty fields in forms

Empty form results are not useful for the user, so we need to decide if it is better to:

• not display each row with empty values ( possible issue > it can hide the fact that user needs to fill it, even if it is visible on edit mode)
• keep the empty fields visible, with a cleaner display (visible rows to see quickly which field is empty)

This changing will impact the Nuxeo Studio, as the Studio platform needs to follow the Nuxeo Platform layout changings.