DFT XC Model

[advikavs]

Description

Fix #(issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
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Checklist

• My code follows the style guidelines of this project
  • Run yapf -i <modified file> and check no errors (yapf version must be 0.32.0)
  • Run mypy -p deepchem and check no errors
  • Run flake8 <modified file> --count and check no errors
  • Run python -m doctest <modified file> and check no errors
• I have performed a self-review of my own code
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• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New unit tests pass locally with my changes
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[rbharath]

Getting close! Mostly documentation issues below

[rbharath]

Can you add the DFT layers to the new table

[rbharath]

Documenting offline discussion, to be done in a follow up PR, with DFT layers to be added to https://github.com/deepchem/deepchem/blob/master/docs/source/api_reference/torch_layers.csv

[rbharath]

LGTM

There are strange errors on the CI from pip failing to install in the conda environment.