Feature Request: setAttribute and addAttribute overrides w/o range

[thejeff77]

Would be pretty sweet to have methods that set attributes on the whole range. Override existing methods without a range param will set attributes for the whole range.

    func addAttributes(_ attributes: [Attribute])
    func addAttributes(_ attributes: [Attribute])
    func setAttributes(_ attributes: [Attribute])
    func setAttributes(_ attributes: [Attribute])

[thejeff77]

Quick code for getting whole range:

let wholeRange = (text.string as NSString).range(of: text.string)

Would also make a good var extension.

eg:

extension NSAttributedString { // (and mutable attributed string) 
  var range: Range {
    get {
      return (self.string as NSString).range(of: self.string)
    }
  }

  func range(of string: String) {
    return (self.string as NSString).range(of: string)
  }
}