Add model with GLVQ classifier

[denkle]

The code is working properly though the accuracy is lower than expected based in the results reported in the paper.

[mikeheddes]

I got an error when running this example:

File "../site-packages/prototorch/models/abstract.py", line 189, in log_acc
    accuracy = torchmetrics.functional.accuracy(preds.int(), targets.int())
TypeError: accuracy() missing 1 required positional argument: 'task'

It looks like prototorch_models is relying on an older version of torchmetrics which recently changed their API design. Downgrading to torchmetrics=0.10.3 worked for me.

[mikeheddes]

Thank you @denkle for another great contribution!
I made some small tweaks to improve the backwards compatibility with torchmetrics.
Do you want some extra time to figure out why you obtain lower accuracy or is the PR ready to be merged?

[mikeheddes]

Hi, just wanted to ask if you had time to look into this yet?