2.8.0

🏗️ Architectural Changes

• Remove Google MLKit FaceDetection dependency;
• Convert Facefy input to a Bitmap;
• Handle "face undetected" event when Facefy return the FaceDetected object as null;

🎨 Code Style & Comments

• Update all file headers;
• Fix some typos;
• Remove some unnecessary internal methods;

📝 Update Readme

• Improve description;
• Fix some types;