feat(wxapi): 新增微信小店商家客服相关接口

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinBusiness/CgibinBusinessRegisterRequest.json

@@ -1,5 +1,6 @@
-{
+{
     "account_name": "apple",
     "nickname": "苹果",
-    "icon_media_id": "media_id"
+    "icon_media_id": "media_id",
+    "transfer_to_commkf": true
 }

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCommonKf/ChannelsECCommonKfCosUploadResponse.json

@@ -0,0 +1,5 @@
+{
+    "cos_url": "https://channels.weixin.qq.com/shop/commkf/downloadmedia?encrypted_param=xxxxx&timestamp=xxxxx&openid=xxxxxx&msg_type=xxx",
+    "errcode": 0,
+    "errmsg": "ok"
+}

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCommonKf/ChannelsECCommonKfSendMessageRequest.json

@@ -0,0 +1,20 @@
+{
+    "request_id": "63abd34b-656b-4082-b364-5f74226e1a20",
+    "open_id": "o7eep4jVQelr2eyoDSmE1xxxxxx",
+    "msg_type": "xxx",
+    "text": {
+        "content": "测试消息123"
+    },
+    "image": {
+        "cos_url": "https://channels.weixin.qq.com/shop/commkf/downloadmedia?encrypted_param=xxxx&timestamp=xxxx&openid=o7eep4jVQelr2eyoDSmE1xxxxxx&msg_type=2"
+    },
+    "file": {
+        "cos_url": "https://channels.weixin.qq.com/shop/commkf/downloadmedia?encrypted_param=xxxx&timestamp=xxxx&openid=o7eep4jVQelr2eyoDSmE1xxxxxx&msg_type=8"
+    },
+    "order_share": {
+        "order_id": "372647xxxxxxxxxxx"
+    },
+    "product_share": {
+        "product_id": "10000xxxxxxx"
+    }
+}

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCommonKf/ChannelsECCommonKfSendMessageResponse.json

@@ -0,0 +1,5 @@
+{
+    "msg_id": "3895464567618158592",
+    "errcode": 0,
+    "errmsg": "ok"
+}