Add tasks for all the new languages

Task/FizzBuzz/Crystal/fizzbuzz.crystal

@@ -0,0 +1,11 @@
+1.upto(100) do |v|
+  p fizz_buzz(v)
+end
+
+def fizz_buzz(value)
+  word = ""
+  word += "fizz" if value % 3 == 0
+  word += "buzz" if value % 5 == 0
+  word += value.to_s if word.empty?
+  word
+end