Added a simple fizzbuzz program in Oz

Author: flyinspaghetti

Oz/simple-fizzbuzz.oz

@@ -0,0 +1,12 @@
+declare
+  fun {FizzBuzz X}
+     if     X mod 15 == 0 then 'FizzBuzz'
+     elseif X mod  3 == 0 then 'Fizz'
+     elseif X mod  5 == 0 then 'Buzz'
+     else                      X
+     end
+  end
+in
+  for I in 1..100 do
+     {Show {FizzBuzz I}}
+  end