message: Make including jawt_md.h more resilient
  Sometimes CMake decides to use the JNI bits included with XCode instead
  of those from the installed JDK. The header files are located in different
  directories. This does the proper include.
diff: #include <stdio.h>
  #include <jawt.h>
  +
  +#if defined(__has_include)
  +#if __has_include(<darwin/jawt_md.h>)
  +#include <darwin/jawt_md.h>
  +#else
  +#include <jawt_md.h>
  +#endif
  +#else
  #include <darwin/jawt_md.h>
  +#endif
  #include <filament/Engine.h>
  #include "JAWTUtils.h"
  