Implement WriteToDocument method in Formatter.

zaaReloaded2/Formatter/Formatter.cs

@@ -88,6 +88,20 @@ namespace zaaReloaded2.Formatter
 
         #region Public methods
 
+        /// <summary>
+        /// Writes some text to the current document.
+        /// Does nothing if there is no current document.
+        /// </summary>
+        /// <param name="text">Text to write to the current document.
+        /// </param>
+        public void WriteToDocument(string text)
+        {
+            if (Document != null)
+            {
+                Document.Range().InsertAfter(text);
+            }
+        }
+
         /// <summary>
         /// Formats the laboratory and writes it to a Word document.
         /// </summary>