doxygen plugin

steps:
  - name: "Build documentation with doxygen"
    description: "Build documentation with doxygen"
    docker: "intmain/microci_doxygen"
    plugin:
      name: doxygen
      #doxyfile: ./Doxyfile     # Default
      #output_dir: doxygen      # Default
      #html:
        #header: header.html    # Optional
        #footer: footer.html    # Optional
        #stylesheet: style.css  # Optional