Output options for kudo version

[kensipe]

What would you like to be added:
kudoctl version -o yaml or kudoctl version -o json should be supported.
This would be consistent with k8s:

kubectl version -o json
{
  "clientVersion": {
    "major": "1",
    "minor": "15",
    "gitVersion": "v1.15.0",
    "gitCommit": "e8462b5b5dc2584fdcd18e6bcfe9f1e4d970a529",
    "gitTreeState": "clean",
    "buildDate": "2019-06-20T04:49:16Z",
    "goVersion": "go1.12.6",
    "compiler": "gc",
    "platform": "darwin/amd64"
  },
  "serverVersion": {
    "major": "1",
    "minor": "14",
    "gitVersion": "v1.14.3",
    "gitCommit": "5e53fd6bc17c0dec8434817e69b04a25d8ae0ff0",
    "gitTreeState": "clean",
    "buildDate": "2019-06-06T01:36:19Z",
    "goVersion": "go1.12.5",
    "compiler": "gc",
    "platform": "linux/amd64"
  }
}

Why is this needed:
It helps with tool automation to parse versions with jq etc.

[kensipe]

Needed this for script validation in soak tests. I'm sure there are lots of other benefits.

[alenkacz]

duplicate of #331