message: cmake config header
diff: // Enable MFEM functionality based on the Sidre library
  #cmakedefine MFEM_USE_SIDRE
  +// Enable MFEM functionality based on the SCOREC library
  +#cmakedefine MFEM_USE_SCOREC
  +
  // Which library functions to use in class StopWatch for measuring time.
  // The available options are:
  // 0 - use std::clock from <ctime>
  