Add a implementation to add different virtual backgrounds across faces like in google meets, zoom etc.

[akshitagupta15june]

add you work in awesome face operations folder by creating your implementation folder inside it

[Aarthy153]

I have created a Real-Time Background Replacement using OpenCV and CVzone. Please assign this to me. I will give a PR for a review. @akshitagupta15june. Working on this for hacktoberfest and SLoP 2.0

[Ashutosh-Mishra01]

can i work on this issue?