Move the declarative bindings out of the module namespace

This fixes a broken types in QML (the typical error from engine is like
"QMetaProperty::read: Unable to handle unregistered datatype
'QDeclarativeOrganizerItemType::ItemType' for
property 'QtOrganizer::QDeclarativeOrganizerEvent::itemType")

This reverts 75d049f770f86 and magically fixes related issues missed in it.

Task-number: QTBUG-35276

Change-Id: I792cf2bb3ff8f5ea7b59438ddf3107009eb2bc63
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>