Merge remote-tracking branch 'origin/FJ/spack_icon_install' into minimal-configuration

conf/common/build.yml

conf/real-from-dwd-ana/jobs.yml

conf/real-from-ideal/jobs.yml

platforms/common/spack_utils.sh

spack_repo/packages/gettext/nvhpc-builtin.patch

spack_repo/packages/gettext/nvhpc-export-symbols.patch

spack_repo/packages/gettext/nvhpc-long-width.patch

spack_repo/packages/gettext/package.py

...po/packages/gettext/test-verify-parallel-make-check.patch

spack_repo/packages/icon-nwp/package.py

templates/common/build_icon.sh

templates/common/build_python_environment.sh

templates/common/run_icon.sh

templates/real-from-dwd-ana/prepare_experiment.sh

templates/real-from-ideal/prepare_experiment.sh

templates/real-from-ideal/run_ideal.sh