Nystagmus Test App for Contrast Sensitivity Function

Requirements

On your Mac Computer, download XCode and make sure Swift is on the newest version
Make sure that all systems are up to date.
Download all of the code onto your computer, and import them into XCode
You will need to install all of the needed libraries including NumPy, nlohmann-json, and iostream.
The remainder of the process is the same for all documented at this link:
- https://developer.apple.com/documentation/xcode/distributing-your-app-to-registered-devices.