Review package requirements in setup.py

[jordanperr]

The requirements in setup.py have become out of date and have too many extra dependencies in the core requrirements.

Some clear places to start:

• pyspark, not required anymore

• jupyterlab, review if still needed or move to an extra

• statsmodels is in there twice

• dask, review if still required

• Hex is pinned to numpy 0.23, but we require 0.24. Is there a reason to require 0.24?

[RHammond2]

Here is the complete roundup from our discussion last week:

• [x] update attrs to attrs>=22.2
• [x] add ipython as a first class dependency
• [x] remove duplicated statsmodel
• [x] remove pyspark
• [x] confirm that dask can be removed
• [x] remove examples/requirements.txt
• Add the following install options:
  • [x] add a note to the appropriate sections in the documentation indicating these updates
  • [x] examples
  • jupyterlab
  • [x] reanalysis
  • cdsapi
  • xarray
  • netcdf4
  • [x] Add a note to the Cubico example stating this option will need to be installed first
  • [x] nrel-wind (or similar naming)
  • h5pyd (wind toolkit)

[RHammond2]

It turns out that Dask is required for xarray to load in the reanalysis data, so I've updated xarray to be xarray[parallel] to be up to xarrays spec on that front, rather than managing it separately.

[RHammond2]

This was addressed in #262, and once merged into main, will be closed.