Consider adding reference implementations for one of each of a supervised and unsupervised ML models

[lorrinferdinand]

We currently have two linear regression models, a supervised learning technique, would it be more useful to have at least one of each of the following:

Supervised

• regression model
• classification model Unsupervised
• clustering model
• any deep learning model (supervised or unsupervised)

[ritesh-modi]

Good to have feature. We can implement this later. For now, we do not need so many samples in the repo