feat: support FunctionOption

[wjones127]

substrait-io/substrait#342 will introduce a change in how functions are represented, moving the enum arguments (like "overflow") into the "options" field.

Currently, we produce something like:

{
    "scalarFunction": {
      "functionReference": 2,
      "outputType": {
        "fp64": {
          "nullability": "NULLABILITY_NULLABLE"
        }
      },
      "arguments": [
        {
          "enum": {
            "specified": "ERROR"
          }
        },
        {
          "value": {
            "selection": {
              "directReference": {
                "structField": {}
              },
              "rootReference": {}
            }
          }
        },
        {
          "value": {
            "literal": {
              "i8": 2
            }
          }
        }
      ]
    }
}

And we will need to produce:

{
    "scalarFunction": {
      "functionReference": 2,
      "outputType": {
        "fp64": {
          "nullability": "NULLABILITY_NULLABLE"
        }
      },
      "options": [
        {
          "name": "overflow",
          "preference": "ERROR"
        }
      ],
      "arguments": [
        {
          "value": {
            "selection": {
              "directReference": {
                "structField": {}
              },
              "rootReference": {}
            }
          }
        },
        {
          "value": {
            "literal": {
              "i8": 2
            }
          }
        }
      ]
    }
}

[gforsyth]

I made this change but I've lost track of which commit it was. But it's done!