1.add 3 funtion:
1.1. /** try to deal with the rest bytes */
   RealHttpReplyMessage *dealWithRestBytes(Socket_ID_Type sockID);
1.2. /** get request-URI from request string of requestMessage */
   std::string getRequestUri(HttpRequestMessage *httpRequest);
1.3. /** get the response info from har file based on the request URI
*/
    HeaderFrame getResponseFromHar(string requestURI);
    
2. change 2 functions:
2.1. change the steps in generateRequestMessage, since the parm of
getRequestUri is HttpRequestMessage*, do it before change
HttpRequestMessage * to the real one;
2.2. add evout in generateResponseMessage to debug the
"Response Header length".
add msgParseFin in CHttpParser
let model simulation run with nsc_client and nsc_server