add new Doxygen build script

.gitlab-ci.yml

@@ -1,12 +1,16 @@
-# This file is a template, and might need editing before it works on your project.
-# Full project: https://gitlab.com/pages/doxygen
-image: alpine
-
 pages:
   script:
-  - apk update && apk add graphviz && apk add ttf-freefont && apk add doxygen
-  - doxygen Doku/Doxygen/Doxyfile
-  - mv Doku/Doxygen/html/ public/
+  - mkdir -p docs
+  - cd Doku/Doxygen/
+  - apt install doxygen texlive-base texlive-latex-extra texlive-fonts-extra texlive-fonts-recommended python3-pip
+  - git clone git://github.com/mosra/m.css
+  - pip3 install jinja2 Pygments
+  - ./m.css/documentation/doxygen.py ./Doxyfile-mcss
+  - cd ./latex
+  - make
+  - cp refman.pdf ../html/ScStwSharedLibraries.pdf
+  - cd ../
+  - mv ./html/ ../../public/
   artifacts:
     paths:
     - public