NXP-12385: Allow setting a default value on a widget configuration on most of nuxeo tags, and on components created via widgets
NXP-12393: Add a widget type displaying radio buttons from simple selections
NXP-12392: Add a widget type setting a variable in the context
NXP-8965: add widget configuration to display versioning options on edit form
NXP-8965: refine the versioning options widget mode, to avoid display when document is not versionable or is a folder
NXP-12392: fix template for setVariable widget type
NXP-8965: even better versioning options widget mode conf
NXP-8965: fix version label widget mode conf