Update Repostory for swift 5 #43
Description
With Swift 5 Xcode suggest me to change things like:
NSLayoutFormatOptions to NSLayoutConstraint.FormatOptions.
NSLayoutAttribute.centerX to NSLayoutConstraint.Attribute.centerX
NSLayoutRelation.equal to NSLayoutConstraint.Relation.equal
bytes: 4, alignedTo: 1 to byteCount: 4, alignment: 1