add BSC's hsmcompute site-specific config (!459) · Merge requests · EBRAINS RI / Tech Hub / Platform / EBRAINS Software Distribution / ebrains-spack-builds · GitLab

add BSC's hsmcompute config from !445 (merged)
re-structure the config files: create separate packages.yaml, compilers.yaml, repos.yaml and only keep "extra" specs needed for BSC in spack.yaml (that will be merged with the top-level spack.yaml)