task 3975 - add .gitlab-ci.yml

.gitlab-ci.yml

+deploy_prod:
+  stage: deploy
+  script:
+    - export IMLCI_URL=$IMLCI_URL
+    - export IMLCI_PROJECT=$IMLCI_PROJECT
+    - export IMLCI_API_SECRET=$IMLCI_API_SECRET
+    - /usr/local/bin/api-imlciserver.sh -a build -b origin/$CI_COMMIT_BRANCH
+  only:
+    - master
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