Add a dialog for editing the file list of generic projects

Task-Nr: QTCREATORBUG-5112

Change-Id: Ic39c4346f2c64b05c314f3c03d963994e043dc45
Reviewed-on: http://codereview.qt.nokia.com/500
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>

src/plugins/genericprojectmanager/genericprojectconstants.h

@@ -54,6 +54,8 @@ const char *const CONFIG_MIMETYPE    = "application/vnd.nokia.qt.generic.config"
 // Project
 const char *const GENERICPROJECT_ID  = "GenericProjectManager.GenericProject";
 
+const char *const EDITFILESACTION = "GenericProjectManager.EditFiles";
+
 } // namespace Constants
 } // namespace GenericProjectManager