Add lots of things(including tests)

test/average/average.test.py

@@ -0,0 +1,6 @@
+import types,functools
+from tape import test
+from average import average
+def average_test(t):
+    t.true(isinstance(average, (types.BuiltinFunctionType, types.FunctionType, functools.partial)),'average is a function')
+test('Testing average',average_test)