Added an implementation to add different virtual backgrounds

[Inferno2211]

Related Issues or bug

Added Virtual Backgrounds

This is a real-time filter that creates a virtual background of our choice on a live feed using using Mediapipe's selfie segmentation model.

Fixes: #1216

Proposed Changes

-Added virtual background in Awesome face operations, which includes files: bg.py, README.md, requirements.txt, bg.jpg and output: output.gif

Additional Info

The filter utilizes Mediapipe's selfie segmentation model to create a mask for the foreground using a threshold value

The background is then slightly blurred and merged with the video stream, using the mask generated

Screenshots