Add MGCN

[demonph10]

Thank you for providing such an excellent project that offers a fair comparison platform. Leveraging your project, we presented a model called MGCN, which is accepted at MM'23. We hope that our model can also be added to this platform, enabling everyone to test our model fairly and contribute to the advancement of the multimodal recommendation community.

[enoche]

Hi, @demonph10 We are thrilled that you have chosen to contribute to our project. Your contributions are valuable to us and we appreciate the time and effort you have put into making our project better.