server: Moved buffer formatting into bufferstrategy

Source/cmConnection.h

@@ -38,6 +38,17 @@ public:
    */
   virtual std::string BufferMessage(std::string& rawBuffer) = 0;
 
+  /***
+   * Called to properly buffer an outgoing message.
+   *
+   * @param rawBuffer Message to format in the correct way
+   *
+   * @return Formatted message
+   */
+  virtual std::string BufferOutMessage(const std::string& rawBuffer) const
+  {
+    return rawBuffer;
+  };
   /***
    * Resets the internal state of the buffering
    */