Create a secret

Example request

{
  "Name": "app-key.crt",
  "Labels": {
    "foo": "bar"
  },
  "Data": "VEhJUyBJUyBOT1QgQSBSRUFMIENFUlRJRklDQVRFCg==",
  "Driver": {
    "Name": "secret-bucket",
    "Options": {
      "OptionA": "value for driver option A",
      "OptionB": "value for driver option B"
    }
  }
}