Make a basic docker build with the gitlab CI

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+job-init:
+  stage: init
+  script: echo "make something useful before build stage"
+
+job-build-docker-latest:
+  stage: build
+  script:
+    - docker build -t stilobique/blender:latest .
+
+#job-build-docker-tag:
+#  stage: build
+#  script:
+#    - docker build -t stilobique/blender:latest