Use better alternatives to HaarCascade for Face Detection and Benchmark them

[justsaumit]

https://learnopencv.com/what-is-face-detection-the-ultimate-guide/
MediaPipe or YuNet or RetinaFace-Mobilenet

https://huggingface.co/qualcomm/MediaPipe-Face-Detection
https://huggingface.co/camenduru/ncnn
https://huggingface.co/google/mobilenet_v2_0.75_160
https://github.com/geaxgx/depthai_yunet
https://github.com/Linzaer/Ultra-Light-Fast-Generic-Face-Detector-1MB

[justsaumit]

Efficientnet B3 or B7
Residual Skips - Preventing Feature Loss