to separate it completely from WidgetDefinitionReader and make it
independent..

Change-Id: If3d6f0e8826b39be28ae18ddf74f2643d1084ec4
Reviewed-on: https://gerrit.libreoffice.org/68689
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>