The Wizards itself (derived from IWizard) and the dialogs
implementing the wizards were quite discoupled.
Since I want to add parameters that are delivered from
IWizard::run to the dialog a I added WizardDialogParameters.

Examples of paramters I want to add are the choosen platform
and the choosen subOption/template for this wizard.

Change-Id: I9c0ae2901e3d46d3c36a3f433f4d7d508a6ba74e
Reviewed-by: Alessandro Portale <alessandro.portale@nokia.com>