introduce subarrays

9 jobs for master in 12 minutes and 39 seconds
Status Name Job ID Coverage
  Build Docker
passed build_docker #1010959

00:03:53

 
  Testing
passed test_nifty_gridder_clang #1010965

00:04:08

passed test_nifty_gridder_gcc #1010964

00:04:34

passed test_pyHealpix_clang #1010967

00:01:04

passed test_pyHealpix_gcc #1010966

00:01:08

passed test_pypocketfft_clang #1010961

00:08:23

passed test_pypocketfft_gcc #1010960

00:08:45

passed test_pysharp_clang #1010963

00:01:29

passed test_pysharp_gcc #1010962

00:01:58