GitLab

#1410 Yaml: Use the extend syntax as the previous one didn't work (see https://gitlab.com/gitlab-org/gitlab-ee/issues/6136 for more details).

#1410 Introduce a script to easily generate the Yaml files... and use it to refresh completely existing ones.

#1360 - #1393 Add the guideline to use macOS machine (and provide Yaml to skip it if no credentials to Nostromo). Add the part explaining how to set up Yaml to use in gitlab.

#1360 Fix syntax in Yaml: |& doesn't work with the bash used in macOS  (see https://stackoverflow.com/questions/20553916/syntax-error-near-unexpected-token-using).

#1360 DOxygen run: add LaTeX and related tools to enable proper handling of mathematical formula in the documentation.

#1360 Require the artifact from check_warning_doxygen only on failure (on success it is empty; the default used previously gave it only on success, not allowing to understand the issues to solve).

#1360 Improve the name of Doxygen artifacts by using commit slug and reference to the Doxygen case considered.

#1360 Almost complete Yaml: 6 different Linux flavors are built and both compilation and Doxygen warnings are checked.

#1360 Rename the yaml (dropping the '.') and create a sumbolic link to it at the root of the project.

#1360 Yaml: first attempt to use the script to count warnings. ctest has been temporarily deactivated; the failure seems closely related to Docker as in a full-fledged Linux environement everything seems fine...

#1382 Yaml: try a new image to see if the tests now pass (third party libraries were updated: there was a gfortran / Mumps issue that is normally solved in latest Petsc).

#1360 Yaml: make Doxygen truly generic (it assumed the output log name of complete case) and fix the path for creating the artifact.

#1360 Modify the Yaml to generate much more images (using the newly created Docker images for third party corrected from the Openblas issue).

#1360 Change in third party path; I am aware Ubuntu build will fail but I want here to test Docker one.

#1360 Test new Docker image with one different setting for Petsc (namely don't use /proc informations).

#1360 Deactivate momentarily a job which could only be taken by a Docker runner (due to lack of shell runner). To reactivate it, I would need to change in images the location of installation from /opt to /opt/MoReFEM.

#1360 Yaml: fix for shell runner (will break docker ones at the moment - images will be modified to fix that later on... at least if I manage to make them suitable!