Add .gitlab-ci.yml file

.gitlab-ci.yml

+image: python:3.7
+
+stages:
+  - configure
+  - test
+
+configure-job:
+  stage: configure
+  script:
+    - echo "Compiling the code..."
+    - echo "Compile complete."
+
+unit-test-job:
+  stage: test
+  script:
+    - echo "Running unit tests... This will take about 60 seconds."
+    - sleep 10
+    - echo "Code coverage is 90%"