feat(work): 新增自建应用代开发 ID 转换相关接口

test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinService/ExternalContactMigration/CgibinExternalContactGetNewExternalUserIdRequest.json

@@ -1,3 +0,0 @@
-{
-    "external_userid_list": ["xxxxx", "yyyyyy"]
-}

test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinService/ExternalContactMigration/CgibinExternalContactGetNewExternalUserIdResponse.json

@@ -1,14 +0,0 @@
-{
-    "errcode": 0,
-    "errmsg": "ok",
-    "items": [
-        {
-            "external_userid": "xxxxx",
-            "new_external_userid": "AAAA"
-        },
-        {
-            "external_userid": "yyyyy",
-            "new_external_userid": "BBBB"
-        }
-    ]
-}

test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinService/Migration/CgibinServiceCorpIdToOpenCorpIdResponse.json

@@ -0,0 +1,5 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "open_corpid": "AAAAAA"
+}

test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinService/Migration/CgibinServiceExternalContactFinishExternalUserIdMigrationRequest.json

@@ -0,0 +1,3 @@
+{
+    "corpid": "xxxxx"
+}