* I have to add weight support for all regression function in the library

* needs testing + debugging

* I have to add weight support for all regression function in the library

* needs testing + debugging

Added two base classes for the tabular models and allowed for bias and activations for the categorical embeddings

Cleaned and refactored the code for the attentive mlps. Adjusted unit tests. Docs build. Ready to move to the Bayesian mlp

Pmulinka/auc - a small fix related to torchmetrics

unit tested tabmlp, tabresnet, tabnet. Left are the transformers, widedeep and new unit tests for the attentive mlp