It would be nice for the Debug Utils to be orthogonal so that once a debug level is set, functionality in other parts of the code can be enabled or disabled programmatically.

Add int getDebugMessageLevel(void); and int getDebugLevel(void); to Arduino_DebugUtils.h, complimenting the setDebugMessageLevel() and setDebugLevel() functions.

Add

int getDebugMessageLevel(void) {
  return Debug.getDebugLevel();
}

to Arduino_DebugUtils.cpp