Script to set firebase function env vars

[sampl]

Currently copying and pasting manually, there's got to be a better way

https://firebase.google.com/docs/functions/config-env

in packages.json?

  "scripts": {
    "setDev": "  firebase use dev &&   firebase functions:config:set \"$(< .env.dev)\"   && firebase deploy --only functions",
    "setStage": "firebase use stage && firebase functions:config:set \"$(< .env.stage)\" && firebase deploy --only functions",
    "setLive": " firebase use live &&  firebase functions:config:set \"$(< .env.live)\"  && firebase deploy --only functions"
  },

[sampl]

looks unlikely to come from firebase: https://github.com/firebase/firebase-tools/issues/406

[sampl]

Since you only have to do it once per project, don't write a script. Just add to docs.

[sampl]

already in docs