Add ARHeadsetKit

[philipturner]

Project URL

https://github.com/philipturner/ARHeadsetKit

Description

Added a high-level framework for beginners to start working with AR without messing with ARKit. It also doubles as the world's first truly affordable AR headset experience, with Google Cardboard costing as little as $5 if you want to activate headset mode. However, there is a dire lack of apps built with ARHeadsetKit.

Why it should be included to example-ios-apps (optional)

Checklist

• Only one project/change is in this pull request
• Addition in chronological order (bottom of category)
• Supports iOS 9 / tvOS 10 or later
• Supports Swift 3 or later
• Has a commit from less than 2 years ago
• Has a clear README in English

[philipturner]

Thanks!