Add gitlab ci

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+# This file is a template, and might need editing before it works on your project.
+image: python:latest
+
+before_script:
+  - python3 -V                                   # Print out python version for debugging
+
+test:
+  script:
+  - python3 setup.py test
+  - pip3 install tox flake8  # you can also use tox
+  - tox -e py36,flake8
+
+run:
+  script:
+  - python3 setup.py bdist_wheel
+  # an alternative approach is to install and run:
+  - pip3 install dist/*
+  # run the command here
+  artifacts:
+    paths:
+    - dist/*.whl
+
+pages:
+  script:
+  - pip3 install sphinx sphinx-rtd-theme
+  - cd doc ; make html
+  - mv build/html/ ../public/
+  artifacts:
+    paths:
+    - public
+  only:
+  - master