Device: Add create method to IDeviceFactory

Add a create method to the IDeviceFactory and make it replace the
createWizard method. The create method may or may not pop up a wizard.

Remove IDeviceWizard as suggested by Christian.

This patch also adds a canCreate() method to check whether a factory should
be asked to create something or not.

Change-Id: Iaf16aa407530022e8f3804093b58dc3f120f7599
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

src/plugins/remotelinux/genericlinuxdeviceconfigurationwizard.cpp

@@ -60,7 +60,7 @@ public:
 } // namespace Internal
 
 GenericLinuxDeviceConfigurationWizard::GenericLinuxDeviceConfigurationWizard(QWidget *parent)
-    : IDeviceWizard(parent),
+    : QWizard(parent),
       d(new Internal::GenericLinuxDeviceConfigurationWizardPrivate(this))
 {
     setWindowTitle(tr("New Generic Linux Device Configuration Setup"));