Support presentment_prices in variants

[irahulranjan]

What is the plan to add presentment price in the variant object

"presentment_prices": [
      {
        "price": {
          "currency_code": "USD",
          "amount": "199.99"
        },
        "compare_at_price": null
      },
      {
        "price": {
          "currency_code": "EUR",
          "amount": "158.95"
        },
        "compare_at_price": null
      },
      {
        "price": {
          "currency_code": "GBP",
          "amount": "143.00"
        },
        "compare_at_price": null
      },
      {
        "price": {
          "currency_code": "JPY",
          "amount": "22400"
        },
        "compare_at_price": null
      }
    ]

[oliver006]

Closed by #247