message: Qrack plugin: wrap CL_HPP version macros in ifndef
diff: #include "AcceleratorBuffer.hpp"
  #include "OptionsProvider.hpp"
  +#ifndef CL_HPP_TARGET_OPENCL_VERSION
  #define CL_HPP_TARGET_OPENCL_VERSION 200
  +#endif
  +
  +#ifndef CL_HPP_MINIMUM_OPENCL_VERSION
  #define CL_HPP_MINIMUM_OPENCL_VERSION 100
  +#endif
  #include "qrack/qfactory.hpp"
  