Add implementations for \textgreater and \textless, defined in (relatively)

recent versions of LaTeX2e but not support in LaTeX2HTML.

Doc/perl/python.perl

@@ -88,6 +88,8 @@ sub do_cmd_let{
 sub do_cmd_textasciitilde{ '~' . @_[0]; }
 sub do_cmd_textasciicircum{ '^' . @_[0]; }
 sub do_cmd_textbar{ '|' . @_[0]; }
+sub do_cmd_textgreater{ '>' . @_[0]; }
+sub do_cmd_textless{ '<' . @_[0]; }
 sub do_cmd_infinity{ '∞' . @_[0]; }
 sub do_cmd_plusminus{ '±' . @_[0]; }
 sub do_cmd_menuselection{ @_[0]; }