PIM-2498 : add a product value form factory
PIM-2498 : update the AddProductValueFieldSubscriber to use the new
factory
PIM-2498 : change visibility of some methods in attribute types
Update change log to describe changes in attribute types
PIM-2498 : add a build productvalue form event
PIM-2498 : update the AttributeTypeInterface (BC)
PIM-2498 : dispatch a new event from the product value form factory
PIM-2498 : fix CS
PIM-2498 : rename CreateProductValueFormEvent
PIM-2498 : allow to update the form type, data and options from an
eventlistener which listen the new create product value form event
Merge branch 'master' into PIM-2498_value_form_factory
PIM-2498 : text type spec
PIM-2498 : remove deprecated unit tests, replaced by specs
PIM-2498 : introduce new spec to replace deprecated UT
PIM-2498 : replace deprecated AddProductValueFieldSubscriber unit test
by a spec
PIM-2498 : add date type spec
PIM-2498 : add metric type spec to replace UT
PIM-2498 : add option multi select spec
Merge branch 'master' into PIM-2498_value_form_factory
PIM-2498 : add ProductValueFormFactory spec