message: fix compile error on MSVC
diff: @@ -26,7 +26,14 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  #include "client_bw.h"
  #include "mutex.h"
  #include <memory>
  +#ifndef _MSC_VER
  +// the header can not be included into code using CLR
  #include <thread>
  +#else
  +namespace std {
  + class thread;
  + }
  +#endif
  class CounterWidthExtender
  {
  