🆕 Integrate Foundation Models Available VIA timm: UNI, Prov-GigaPath, H-optimus-0 (#856)

- Integrates pre-trained foundation models from other labs into tiatoolbox.models.architecture.vanilla.py.

Currently, the `_get_architecture()` function allows the use of models from `torchvision.models`.

A new function `_get_timm_architecture()` has been incorporated to support foundation models which are available from `timm` with weights on HuggingFace Hub. 

- All the models from `timm` that used require users to sign the licence agreement with the authors.
- The users can add new models by modifying `_get_timm_architecture()`

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Shan E Ahmed Raza <[email protected]>

Author: 3 people