GitLab

* added nn pytorch egatconv

* aligned with test build

* aligned with test build

* fixed wihite spaces

* fixed wihite spaces

* fixed wihite spaces

* added missing egatconv in imports

* added indentation in forward

* GATConv based implementation

* removed **kw_args

* added dgl relative imports

* PR corrections

* added DGL Error to EGATConv imports

* Update test_nn.py
Co-authored-by: Argusmocny <k.kaminski@cent.uw.edu.pl>
Co-authored-by: Mufei Li <mufeili1996@gmail.com>