Adding gitlab CI for bundling & gitlab pages

.gitlab-ci.yml

+image: node:latest
+
+cache:
+    paths:
+        - node_modules/
+
+test_async:
+    script:
+        - npm install
+        - npm run rollup
+    artifacts:
+        paths:
+            - dist/
+
+pages:
+    stage: deploy
+    script:
+        - mkdir .public
+        - cp -rv dist .public
+        - cp -rv demo .public
+        - cp -rv demodata .public
+        - mv .public public
+    artifacts:
+        paths:
+            - public
+        expire_in: 1 day
+    only:
+        - master