Dgcnn

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- Allow for variable node-counts by passing "None" to the input layer.

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- Make SortPooling optional in DeepConvolutional
- Host docs on github pages

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- Finished documentation
- Wrote README.md
- added flatten_signals option to DeepGraphConvolution
- publish to pypi and github.
- publish docs.

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- Proper Docstrings.
- Trying it on financial data.

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- Baseline working implementation of DGCNN
- pushing to GitHub