add bin/ launcher for plotTool, etc?

Can we get a command-line launcher for the plotTool?

FWIW, I disagree with using the LSST/HSC/DRP shebang scheme, as being non-POSIX compliant. Instead, I suggest creating an executable shell file like:

python -m sps_engineering_plotTool.main "$@"

No shebang, no absolute path, no /usr/bin/env.