title: Is there a version of Mat1b with CUDA
body: <p>When using a equivalent of <code>Mat</code> with CUDA we use <code>cv::cuda::GpuMat</code></p>
  <p>Is there a equivalent of <code>Mat1b</code> to use with CUDA?</p>
  <p>Is there a equivalent of <code>Mat_</code> as in <code>GpuMat_</code>?</p>