Installs exor using npm.
In general, when a
npm run process gets killed (i.e. SIGTERM), its children are not killed unexepctedly and remain running.
exor wraps command execution and ensures child processes to be killed then whe parent one gets killed.
npm install [--save|--save-dev] @motemen/exor ./node_modules/.bin/exor <command> <args>... # eg. "exor npm run ..."