Add .gitlab-ci.yml

.gitlab-ci.yml

+before_script:
+  - apt-get update -qq && apt-get install -y -qq libhdf5-dev
+  - pip install -U pip setuptools wheel
+  - pip install .
+
+test:
+    image: python:3.7.0
+    script:
+        - echo narf
+
+pages:
+    image: python:3.7.0
+    script:
+        - cd docs && make html
+        - mv _build/html/ ../public/
+    artifacts:
+        paths:
+            - public