The DecoratorsPreferencePage is the preference page for enabling and disabling
the decorators in the image and for giving the user a description of the decorator.
New wizard selection tab that allows the user to either select a
registered 'New' wizard to be launched, or to select a solution or
projects to be retrieved from an available server.
Instances of this class are a collection of WizardCollectionElements,
thereby facilitating the definition of tree structures composed of these
elements.
Abstract implementation of a wizard selection page which simply displays a
list of specified wizard elements and allows the user to select one to be
launched.