Create a function that accepts a string (of a person's first and last name) and returns a string with the first and last name swapped.
NameShuffle("Donald Trump") ➞ "Trump Donald"
NameShuffle("Rosie O'Donnell") ➞ "O'Donnell Rosie"
NameShuffle("Seymour Butts") ➞ "Butts Seymour"