Add project: HamGNN

[Irratzo]

Project details:

• Project Name: HamGNN
• Github URL: https://github.com/QuantumLab-ZY/HamGNN
• Category: ml-dft
• Labels: rep-learn, magnetism, lang-c
• License: GPL-3.0
• Package Managers: None

Additional context:

Most likely associated paper https://doi.org/10.1038/s41524-023-01130-4. README did not point to it at time of writing.