【新增】广告列表管理新增【广告位】下拉检索，增加行字段说明，增加【原图上传】。

CoreCms.Net.Web.Admin/Controllers/Advert/CoreCmsAdvertisementController.cs

@@ -221,14 +221,17 @@ namespace CoreCms.Net.Web.Admin.Controllers
         /// <returns></returns>
         [HttpPost]
         [Description("首页数据")]
-        public AdminUiCallBack GetIndex()
+        public async Task<AdminUiCallBack> GetIndex()
         {
             //返回数据
             var jm = new AdminUiCallBack { code = 0 };
             var types = EnumHelper.EnumToList<GlobalEnumVars.AdvertisementType>();
+            var advertPosition = await _coreCmsAdvertPositionServices.QueryAsync();
+
             jm.data = new
             {
-                types
+                types,
+                advertPosition
             };
             return jm;
         }