Resolve "Improve CI template organization"

Closes #35 (closed)

ci-templates/examples/build_vars.yml

+include:
+  - project: tecnalia_robotics-public/gitlab_templates
+    file: ci-templates/auto-rules/no-default.yml
+
+variables:
+  BUILD_KINETIC: 1
+  BUILD_MELODIC: 1
+  BUILD_NOETIC: 1