Merge branch 'wxrichtextctrl_word_wrapping_opt' of https://github.com/mehmet-soyturk/wxWidgets

Optimize wrapping long lines in wxRichTextCtrl.

See https://github.com/wxWidgets/wxWidgets/pull/2523

include/wx/richtext/richtextbuffer.h

@@ -4654,6 +4654,7 @@ protected:
 
     // The lines that make up the wrapped paragraph
     wxRichTextLineList  m_cachedLines;
+    wxVector<wxRichTextLine*> m_cachedLinesVect;
 
     // Whether the paragraph is impacted by floating objects from above
     int                 m_impactedByFloatingObjects;