[API] update inventory/part object

[tiemonl]

public class Details
{
    public bool isElite { get; set; }
    public string serialNumber { get; set; }
    public int durability { get; set; }
    public int weight { get; set; }
    public int steering { get; set; }
    public string edition { get; set; }
    public string internalType { get; set; }
    public string type { get; set; }
    public int speed { get; set; }
    public string internalId { get; set; }
    public string model { get; set; }
    public int power { get; set; }
    public string brand { get; set; }
    public string rarity { get; set; }
}

public class Part
{
    public string external_url { get; set; }
    public Details details { get; set; }
    public string description { get; set; }
    public string id { get; set; }
    public string image { get; set; }
    public string name { get; set; }
}

public class Inventory
{
    public List<Part> parts { get; set; }
    public int total { get; set; }
}