Function enableUSMAllocTutorial

tutorials/common/alloc/alloc.cpp:17–21

  __thread sycl::device* tls_device = nullptr;
  
  void enableUSMAllocTutorial(sycl::context* context, sycl::device* device)
  {
    tls_context = context;
    tls_device = device;
  }

  void disableUSMAllocTutorial()
  {