Release highlights - use SPDX style disclaimers - .gitmodules: use https: instead of not longer supported git: - remove now defunct Travis support - add GitHub Action based CI workflow - improve documentaion, add HOWTO_execute_benchmark
Release highlights - use SPDX style disclaimers - .gitmodules: use https: instead of not longer supported git: - remove now defunct Travis support - add GitHub Action based CI workflow - improve documentaion, add HOWTO_execute_benchmark