in the wizard interface add the posibility to obtain an image to show on the left in the wizard page

src/net/java/sip/communicator/service/gui/AccountRegistrationWizard.java

@@ -37,6 +37,12 @@ public interface AccountRegistrationWizard {
      */
     public byte[] getIcon();
     
+    /**
+     * Returns the image that will be shown on the left of the wizard pages.
+     * @return the image that will be shown on the left of the wizard pages
+     */
+    public byte[] getPageImage();
+    
     /**
      * Returns the protocol name that will be shown in the list, where user
      * will choose the protocol to register to.