Use cython in setup

Author: ltworf

gensetup.py

@@ -68,7 +68,11 @@ def load_version():
 f'''#!/usr/bin/python3
 # This file is auto generated. Do not modify
 from distutils.core import setup
+
+from Cython.Build import cythonize
+
 setup(
+    ext_modules = cythonize(["typedload/dataloader.py", "typedload/typechecks.py",  "typedload/exceptions.py"]),
     name='typedload',
     version={load_version()!r},
     description='Load and dump data from json-like format into typed data structures',