…darray

To avoid confusion with the HDF5 array dataset itself.

Thanks to @martaiborra for the clarification.

Instead of checking that the array's chunk shape matches the dataset's chunk
shape, check that the array's whole shape matched the dataset's chunk shape.
PyTables stores one Blosc2 chunk per HDF5 chunk, but it should be able to cope
with Blosc2 frames containing several chunks (since reading does not really
operate at the Blosc2 chunk level), as long as the whole Blosc2 array has the
proper shape.

This may ease having PyTables read b2nd-compressed arrays where dataset chunks
contain several Blosc2 chunks.

These checks were already made by the filter, but still missing here.

This increases compatibility with datasets written with other tools, esp. if
they also use b2nd for scalar or unidimensional data, as chunk rank/shape
filter values used by PyTables for the checks may be missing (and filter set
function would not set them either since rank < 2).

The issue seems to have vanished on Guix (GCC 12.3.0), let us see what CI says
about Ubuntu.