allow running limited tests
allow running limited tests

Developers wanted to be able to easily run one or more tests of interest
without having to run the full suite of tests. With this change you
can do:
docker-compose run --rm web npm run testsome -- src/server/test/web/groups.js src/server/test/db/baselineTests.js
to run both the groups and baselineTests. It is fine to do only one
test or list as many as you want.

OpenEnergyDashboard/OED,OpenEnergyDashboard/OED,OpenEnergyDashboard/OED,OpenEnergyDashboard/OED