Load slices of hdf5 dataset

[JuanPedroGHM]

Some users have expressed interest in only loading partial slices from an HDF5 dataset. This PR adds the slices argument to load_hdf5, to allow dataset slicing like in the with the h5py API.

Due Diligence

• General:
  • title of the PR is suitable to appear in the Release Notes
• Implementation:
  • unit tests: all split configurations tested
  • unit tests: multiple dtypes tested
  • benchmarks: created for new functionality
  • benchmarks: performance improved or maintained
  • documentation updated where needed

Description

Issue/s resolved: #

Changes proposed:

• Slice argument for load_hdf5
• Auxiliary function to calculate the new size and offset of a sliced axis
• Hypothesis and pytest as a dependency for tests
• Hypothesis tests for the new functionality.

Type of change

Memory requirements

Performance

Does this change modify the behaviour of other functions? If so, which?

yes / no

[github-actions]

Thank you for the PR!

[github-actions]

Thank you for the PR!