Add map Record Standalone Function

Adding a function that can be used to create a map of Strings.

For example, if we have the following record:

{ 
    "firstName": "John",
    "lastName": "Snow"
}

We could use the UpdateRecord processor with

/fullName => map("firstName", /firstName, "lastName", /lastName)

And that would give us something like:

{
    "firstName": "John",
    "lastName": "Snow",
    "fullName": {"firstName": "John", "lastName": "Snow"}
}

This function requires an even number of arguments and the record paths must represent simple field values.