[Lazarus] TCheckListBox property OnSelectionChange not published

[Sandro Cumerlato]

Hello,
property OnSelectionChange is not available for component TCheckListBox.

Please review attached patch and apply if OK.

Thank you in advance.

Sandro Cumerlato
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Index: lcl/checklst.pas
===================================================================
--- lcl/checklst.pas	(revision 52752)
+++ lcl/checklst.pas	(working copy)
@@ -126,6 +126,7 @@
     property OnMouseWheelDown;
     property OnMouseWheelUp;
     property OnResize;
+    property OnSelectionChange;
     property OnShowHint;
     property OnStartDrag;
     property OnUTF8KeyPress;