Adding Hierarchal Clustering in clustering algorithms

[Pookie-n-Rookie]

Hierarchal clustering was missing from clustering algorithms. It is very helpful for variety of data.

[github-actions]

Thanks for creating the issue

[Pookie-n-Rookie]

@Niketkumardheeryan assign me this issue and i will add Hierarchal clustering algo in the clustering algorithm file.

[invigorzz313]

This issue has been assigned.

[shubhamnakum]

@Niketkumardheeryan Please assign me the issue i want to contribute to it. i will add the algorithm with steps.

[arnavsm]

Id like to contribute to this