message: fix link error on Windows
diff: #include <string>
  #include <typeinfo>
  +#include "../common.h"
  +
  namespace ospcommon {
  namespace utility {
  - std::string demangle(const char* name);
  + OSPCOMMON_INTERFACE std::string demangle(const char* name);
  template <class T>
  inline std::string nameOf()
  