CatBoost Classification and Regression feature

[0sparsh2]

• igel version: 1.0.0
• Python version: 3.10
• Operating System: MacOS

Description

I tried to add the CatBoost Regression and Classification Models in addition to the other models imported from sklearn library. It is my first pull request to forgive me if any mistakes were created.

The pull request has been created for the CatBoost algorithm which includes the installation as well.

[SS-S3]

I am interested, is the issue open?