Consider if literal-to-object conversion should assign simple types

[webb]

Literal-to-object conversion turns something like:

{
  "nc:PersonFullName" : "Sherlock Holmes"
}

Into

{
  "nc:PersonFullName" : { "rdf:value": "Sherlock Holmes" }
}

Should it go a step farther, by assigning type information where appropriate? Like properly handling dates? For example, turn this:

{
  "nc:Date": "1970-01-01"
}

…into this:

{
  "nc:Date": {
    "rdf:value": {
      "@value": "1970-01-01",
      "@type": "xs:date"
    }
  }
}