Add Type Annotations to the Codebase (#336)

.gitignore

docs/source/conf.py

examples/upload.py

mwclient/__init__.py

mwclient/client.py

mwclient/errors.py

mwclient/image.py

mwclient/listing.py

mwclient/page.py

mwclient/sleep.py

mwclient/types.py

mwclient/util.py

pyproject.toml

test/integration.py

test/test_client.py

test/test_listing.py

test/test_page.py

tox.ini