add output format options to 'replicated release create'

[laverya]

No description provided.

[laverya]

test output:

./bin/replicated release create --yaml-dir ./temp

  • Reading manifests from ./temp ✓
  • Creating Release ✓
    • SEQUENCE: 4
./bin/replicated release create --yaml-dir ./temp --output=json

{
  "sequence": 5,
  "appId": "2yPm36S98KznOWv4Dz3Aa9E02KJ",
  "charts": [
    {
      "name": "laverya-test-app",
      "version": "0.1.4",
      "status": "unknown"
    },
    {
      "name": "postgresql",
      "version": "16.7.8",
      "status": "unknown"
    }
  ]
}

[emosbaugh]

what happens if it prompts on line 201?

confirmed, err = promptForConfirm()

[laverya]

no output plus invisible spinner
I think I'll remove the zero writer change commit if that's all right? Least bad option barring a major refactor IMO