Font Awesome 5 improvements

[divadretlaw]

Changes

• Implements TODOs in generator.sh
• Fixes Swift keyword usages in Generator
• Adapts Code to reflect the generated enums
• Adds watchOS Support
• Fixes some macOS related issues

Test

I do not have a Font Awesome Pro license but everything seems to work with the free version.

• [x] Test installation via Carthage
• [ ] Test installation via CocoaPods
• [x] Test on iOS
• [x] Test on macOS
• [x] Test on tvOS
• [ ] Test on watchOS

[rafiki270]

Yeah, please change it back, we won’t break the API for people who already implemented it and it makes a wee bit more sense when you write it down