Lists support added (#18)

spec/fixtures/payment_response.json

@@ -19,8 +19,8 @@
     "saved": false
   },
   "recipient": {
-    "account_id": "54401",
-    "gateway_id": "289250"
+    "account_id": 54401,
+    "gateway_id": 289250
   },
   "refundable": false,
   "test": true

spec/fixtures/payments_list_response.json

@@ -0,0 +1,42 @@
+{
+  "type": "list",
+  "items": [
+    {
+      "id": "22e12f66-000f-5000-8000-18db351245c7",
+      "status": "waiting_for_capture",
+      "paid": true,
+      "amount": {
+        "value": 2,
+        "currency": "RUB"
+      },
+      "created_at": "2018-07-18T10:51:18.139Z",
+      "description": "Заказ №72",
+      "expires_at": "2018-07-25T10:52:00.233Z",
+      "metadata": {
+        
+      },
+      "payment_method": {
+        "type": "bank_card",
+        "id": "22e12f66-000f-5000-8000-18db351245c7",
+        "saved": false,
+        "card": {
+          "first6": 555555,
+          "last4": 4444,
+          "expiry_month": 7,
+          "expiry_year": 2022,
+          "card_type": "MasterCard",
+          "issuer_country": "RU",
+          "issuer_name": "Sberbank"
+        },
+        "title": "Bank card *4444"
+      },
+      "recipient": {
+        "account_id": 100001,
+        "gateway_id": 1000001
+      },
+      "refundable": false,
+      "test": false
+    }
+  ],
+  "next_cursor": "37a5c87d-3984-51e8-a7f3-8de646d39ec15"
+}

spec/fixtures/refunds_list_response.json

@@ -0,0 +1,16 @@
+{
+  "type": "list",
+  "items": [
+    {
+      "id": "216749f7-0016-50be-b000-078d43a63ae4",
+      "status": "succeeded",
+      "amount": {
+        "value": 1,
+        "currency": "RUB"
+      },
+      "created_at": "2017-10-04T19:27:51.407Z",
+      "payment_id": "216749da-000f-50be-b000-096747fad91e"
+    }
+  ],
+  "next_cursor": "416746f8-0016-50be-b000-078d43a4578"
+}