Producing local edge embeddings by global edge encoder

[joneswong]

https://github.com/MinkaiXu/GeoDiff/blob/ea0ca48045a2f7abfccd7f0df449e45eb6eae638/models/epsnet/dualenc.py#L210

I am wondering whether this is correct. It seems that edge_encoder_local is not called within the whole module.