Add AC Helper and Puffery

[vknabel]

Project URL

1. https://github.com/Dimillian/ACHNBrowserUI (<- I contributed to it)
2. https://github.com/vknabel/puffery (<- my app)

Description

Adds AC Helper and Puffery apps

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

Both apps are already on the App Store.

1. AC Helper has quite a lot features and localizations. Quite interesting and view-heavy (many screens).
2. Puffery is a mono-repo for iOS app and Vapor-Server which share the same structs. Much smaller app with just a bunch of views.

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

[vknabel]

Is adding two projects in one PR okay? If requested, I can split it.

[jogendra]

Thanks for contributing @vknabel ✨

[vknabel]

No problem! Great list of projects!