Add GetParser methods for the tag handlers

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73839 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/html/htmlpars.h

@@ -228,6 +228,9 @@ public:
     virtual void SetParser(wxHtmlParser *parser)
         { m_Parser = parser; }
 
+    virtual wxHtmlParser* GetParser() const
+        { return m_Parser; }
+    
     // Returns list of supported tags. The list is in uppercase and
     // tags are delimited by ','.
     // Example : "I,B,FONT,P"