How to use R.swift in UITest in iOS

Issue #138

Here is how to use R.swift in UITest target

• Add Localizable.strings to UITest target
• Declare pod

target 'MyAppUITests' do
  pod 'R.swift', '~> 4.0'
end

• In UITest target settings, add $(FRAMEWORK_SEARCH_PATHS) to Runpath Search Path
• Add R.generated.swift to UITest target