GNNs to improve Newmark integration scheme

The objective is to provide a GNN algorithm that can replace newmark integration scheme. Once the model is trained it will be faster to use the GNN-Newmark to solve the equation of motion than the Newmark integration scheme.

process running

1. create the FEM analysis

   To do this we use run_scatter.py (I edited the solver locally to write the results)

2. create the data loader