[Feature] Triplet Marginal Loss

[cvnad1]

I would like to add the Triplet Marginal Loss Function.

Reference: https://pytorch.org/docs/stable/_modules/torch/nn/functional.html#triplet_margin_loss

[vroulet]

Hello @cvnad1,

Feel free to proceed and add it to the self_supervised folder of the losses, so here

[cvnad1]

@vroulet Hey sorry for a little delay

I completed the code for the loss function and am currently adding tests. Once the tests are added, I will create a PR.

Thanks for giving me the location where to add !!!