UPS add surcharges codes mapping

[jacobshilitz]

currntly karrio API on ups shipment return

{
      "id": "rat_1431aa4bf52449438e6ed9320a141071",
      "object_type": "rate",
      "carrier_name": "ups",
      "carrier_id": "ups",
      "currency": "CAD",
      "service": "ups_express_ca",
      "total_charge": 23.38,
      "transit_days": 1,
      "extra_charges": [
        {
          "name": "Base charge",
          "amount": 64.67,
          "currency": "CAD"
        },
        {
          "name": "01",
          "amount": 0,
          "currency": "CAD"
        },
        {
          "name": "375",
          "amount": 3.41,
          "currency": "CAD"
        },
        {
          "name": "HST",
          "amount": 2.69,
          "currency": "CAD"
        }
      ],
      "meta": {
        "carrier": "ups",
        "carrier_connection_id": "car_711e19eddc164eaa80e12d34d36a215d",
        "ext": "ups",
        "rate_provider": "ups",
        "service_name": "UPS EXPRESS CA"
      },
      "test_mode": false
    },
    

we need to add this item-charges mapping

https://developer.ups.com/api/reference/rating/appendix?loc=en_US

@danh91 please advise me where I should add them, thank you in advance

[jacobshilitz]

see #673, I'm sure you will have many comments, I first did a quick PR, but its not ready of course