packaging: Add py.typed marker file & install in setup.py.
This follows the provisional new PEP 561:
MODIFY
zulip/setup.py
zulip/setup.py
@@ -49,6 +49,7 @@ package_info = dict(
'zulip-api-examples=zulip.api_examples:main'
],
},
+ package_data={'zulip': ["py.typed"]},
) # type: Dict[str, Any]
setuptools_info = dict(

ADD
zulip/zulip/py.typed
zulip/zulip/py.typed
packaging: Add py.typed marker file & install in setup.py.

This follows the provisional new PEP 561:
https://www.python.org/dev/peps/pep-0561/.