Images Face Layout

I made it easier to draw images on top of each feature. Just set the feature type, image file, ratio and offset (if desired) and Warhol will do it. You can forget about coordinates.
Furthermore, I refactored the Face View Model class so it is easier to handle with less code.

SPM Support

Support for Swift Package Manager

Improve semantics

• Minor improvements

Initial Release

• Face Detection from Camera
• Face Detection from UIImageView
• Face features conversion to the client coordinates.
• Draw on top of the face.