DevTools: move front-end files from components to ui.

Source/devtools/front_end/ui/Panel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 240 matching lines @@
         /**
          * @param {!Object} panelFactory
          * @return {!WebInspector.Panel}
          */
         function createPanel(panelFactory)
         {
             return /** @type {!WebInspector.PanelFactory} */ (panelFactory).createPanel();
         }
     }
 }