Refactoring configuration

ci/install_compilers.sh

ci/setup_spack.sh

ci/stack_env.sh

stacks/pinot-noir-gcc/concretizer_common.yaml

stacks/pinot-noir-gcc/config_common.yaml

stacks/pinot-noir-gcc/definitions_acc_cuda.yaml

stacks/pinot-noir-gcc/definitions_acc_none.yaml

stacks/pinot-noir-gcc/definitions_izar.yaml

stacks/pinot-noir-gcc/definitions_kuma-h100.yaml

stacks/pinot-noir-gcc/definitions_kuma-l40s.yaml

stacks/pinot-noir-gcc/mirrors.yaml

stacks/pinot-noir-gcc/modules_acc_none.yaml

stacks/pinot-noir-gcc/modules_common.yaml

stacks/pinot-noir-gcc/packages_common.yaml

stacks/pinot-noir/concretizer_common.yaml

stacks/pinot-noir/config.json

stacks/pinot-noir/config_common.yaml

stacks/pinot-noir/definitions_acc_cuda.yaml

stacks/pinot-noir/definitions_acc_none.yaml

stacks/pinot-noir/definitions_izar.yaml