message: Added <map> to HeatFlux.h
diff: #define TACS_HEAT_FLUX_H
  #include "TACSFunction.h"
  +#include <map>
  /*
  Compute the KS functional of the heat flux on a given face or edge
  @@ -106,4 +107,5 @@ class HeatFluxIntegral : public TACSFunction {
  std::map<int, int>elem_to_surf;
  std::map<int, int>::iterator elem_to_surf_it;
  };
  +
  #endif // TACS_HEAT_FLUX_H
  