Add support for PersLayer #20
Description
Import PersLayer to PyTorch topological. As apart of this effort, it would be nice to include the following deliverables:
- PyTorch layer
- Unit tests
- Example of usage
- Simple documentation on how this is used and why someone would find this layer useful to integrate into their network architecture
Useful resources for completing this task:
- PersLayer paper.
- Current PersLayer implementation in TensorFlow which is used by Gudhi.