jForms - improved the output of values. last changes.

in "only view" mode
- labels are displayed like in the edition mode
- ctrl_label doesn't display anymore "required" indicator
- display of choice and group widgets is better

Changes in the API

- added a boolean in parameters of \jelix\forms\Builder\BuilderBase::outputControlLabel()
- added a boolean in parameters of \jelix\forms\HtmlWidget\WidgetInterface::outputLabel()
- the formdatafull template plugin accepts now a builder type and some builder options

All your pages that displays datas of a form should be checked and probably some templates
should be checked.
jForms: ctrl_label accepts now a format string

It allows to add some characters to a label, when it exists. The format string should be
usable with sprintf