-add class for store Xref properties

-add widget for edit it
-make link betwen QET -> QETproject -> Diagram, for transmit the xrefproperties
-xrefpropertie can save/load to xml and setting.
-XRefItem don't use the properties yet


git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2983 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/projectconfigpages.h

@@ -26,6 +26,7 @@ class TitleBlockPropertiesWidget;
 class ConductorPropertiesWidget;
 class DiagramContextWidget;
 class ReportPropertieWidget;
+class XRefPropertiesWidget;
 
 /**
 	This class, derived from ConfigPage, aims at providing the basic skeleton
@@ -144,6 +145,7 @@ class ProjectNewDiagramConfigPage : public ProjectConfigPage {
 	TitleBlockPropertiesWidget *titleblock_;
 	ConductorPropertiesWidget *conductor_;
 	ReportPropertieWidget *report_;
+	XRefPropertiesWidget *xref_;
 };
 
 #endif