Provide generic way to propagate env vars into startprefix environment#260

Neves-P merged 2 commits into

EESSI:mainEESSI/software-layer-scripts:mainfrom

casparvl:create_mechanism_for_propagating_env_vars_into_prefixcasparvl/software-layer-scripts:create_mechanism_for_propagating_env_vars_into_prefixCopy head branch name to clipboard