Also build the Doxygen-based CPP frontend docs in the CI so that they can be...

Also build the Doxygen-based CPP frontend docs in the CI so that they can be automatically published via GitLab Pages.
9 jobs for master in 18 minutes and 44 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Build
passed build #181987

00:04:58

passed build_android #181992

00:01:29

passed build_clang_libcpp #181988

00:04:44

passed build_clazy #181991

00:07:44

passed build_gcc_49 #181989

00:05:57

passed build_mingw64_fedora #181990

00:05:17

 
  Document
passed cpp_docs #181994

00:05:17

passed qt5_docs #181993

00:03:57

 
  Publish
passed trigger_pages #181995

00:00:24