Add atom koans

test/koans/atoms_koans_test.exs

@@ -0,0 +1,17 @@
+defmodule AtomsTests do
+  use ExUnit.Case
+  import TestHarness
+
+  test "Atoms" do
+    answers = [
+      :human,
+      {:multiple, [:atomized, "stringified"]},
+      {:multiple, ["Jay", "Jay"]},
+      {:multiple, [true, true, true, false]},
+      {:multiple, [true, String, "HELLO"]},
+      {:multiple, [true, [1,2,3]]},
+    ]
+
+    test_all(Atoms, answers)
+  end
+end