LazUtils: Add a helper function RenderHTML2Text for class THTML2TextRenderer.

components/lazutils/html2textrender.pas

@@ -68,8 +68,21 @@ type
     property IndentStep: integer read fIndentStep write fIndentStep;
   end;
 
+  function RenderHTML2Text(const AHTML: String): String;
+
+
 implementation
 
+function RenderHTML2Text(const AHTML: String): String;
+begin
+  with THTML2TextRenderer.Create(AHTML) do
+    try
+      Result:=Render;
+    finally
+      Free;
+    end;
+end;
+
 { THTML2TextRenderer }
 
 constructor THTML2TextRenderer.Create(const aHTML: string);