Merging MP results

[Demirrr]

Training a model with MP trainer on 4 GPUs creates model_0.pt, model_1.pt, model_2.pt, and model_3.pt.
We need to write a function that takes the local path of a directory where these pytorch files reside.
Each file must have the same number of parameters, i.e., the embedding matrices shapes are same.
Task is to we need to concat these 4 models horizontaly.

[Demirrr]

entity_to_idx.csv and relation_to_idx.csv contain IRIs and their indices.