feat: including the possibility to choose the hyperparameter of a given model.

[MarianoChaves]

Here I included the possibility to include the desiderd hyperparameters of a given class. It can be useful depending on the usecase. I've included it in the documentation and also included an unity test for that.

Disclaimers:

• Setting the hyperparameter is optional;
• If the hyperarameter is setted, it is not necessary to set to all models, only for the desired ones.

[shankarpandala]

Thanks for your contribution.
Will look into it