Feature request: ADDITION OF "FACE DETECTION USING HARRCASCADE ALGORITHM"

**Is your feature request related to a problem? Please describe.**
I would like to implement face detection using the Haar cascades algorithm, ensuring accurate results, as previous attempts using other codes have not been successful.

**Describe the solution you'd like**
I want to use a pre-trained model of Harrcascades so that the detection will become easy.

**Describe alternatives you've considered**
Instead of training the model I want to use an ".xml" file which has pre-trained model to detect the face.