Improve speed and accuracy

- Update deepfake detection model (Improve accuracy)

- Update the API to accept encoded data. Using libjpeg-turbo and libpng for the decoding. New function: https://www.doubango.org/SDKs/face-liveness/docs/cpp-api.html#_CPPv4N12FaceLiveness12FldSdkEngine7processEPKvK6size_t
- Fix issue #26

Add support for Deepfake detection

Improve FRR (False Rejection Rate) and FAR (False Acceptance Rate)

Fix issue #17 and #18

Fix issue #13 (Add C++ function to the API to retrieve EXIF orientati…

…on value) -> https://www.doubango.org/SDKs/face-liveness/docs/cpp-api.html#_CPPv4N12FaceLiveness12FldSdkEngine15exifOrientationEPKvK6size_t