Include result object in generateStatement function

[rpc5102]

The result object is missing from generateStatement.

generateStatement(
  session,
  verb = NA,
  object = NA,
  description = NA,
  interactionType = NA,
  response = NULL,
  success = NA,
  completion = NA,
  extensions = NULL
)

[rpc5102]

Not sure what I was thinking here, we already have response, success, and completion which go in the result object. We'd just need to add score and duration.

Extensions can go in object, context (not supported), or result so naming should be more clear. Alternatively, accept both types, and add an identifier inside the argument; convert default to list() from NA.

extensions = list(
  list(type = "object", ref = "<link>", value = "<string>"),
  list(type = "result", ref = "<link>", value = "<string>"),
  list(type = "result", ref = "<link>", value = "<string>")
)