Reverted to old wxPG_AUTO_SORT behavior in which only root properties and immediate children of categories are (automatically) sorted; Added Sort flags; Applied slight optimization when sorting on propgridmanager page change

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57975 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/propgrid/propgridpagestate.h

@@ -613,8 +613,10 @@ public:
     /** Set virtual width for this particular page. */
     void SetVirtualWidth( int width );
 
-    void DoSortChildren( wxPGProperty* p, bool recursively = false );
-    void DoSort();
+    void DoSortChildren( wxPGProperty* p, int flags = 0 );
+    void DoSort( int flags = 0 );
+
+    bool PrepareAfterItemsAdded();
 
     void SetSelection( wxPGProperty* p ) { m_selected = p; }