Made column and row spans members so they don't interfere with app-defined properties.

Added identifier to wxRichTextObject so objects can be addressed by name.
Generalised wxRICHTEXT_CHANGE_OBJECT command so it can now apply to a paragraph as well as an object within a paragraph.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75124 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/richtext/richtextbuffer.h

@@ -2588,6 +2588,16 @@ public:
     */
     bool IsShown() const;
 
+    /**
+        Returns the object's unique identifier, if any.
+    */
+    const wxString& GetId() const;
+
+    /**
+        Sets the object's unique identifier.
+    */
+    void SetId(const wxString& id);
+
 // Operations
 
     /**