Add IUpdateable<T> Where(string whereSql,object parameters=null)

Src/Asp.Net/SqlServerTest/Demos/2_Update.cs

@@ -59,6 +59,8 @@ namespace OrmTest.Demo
             //Column is null no update
             db.Updateable(updateObj).Where(true).ExecuteCommand();
 
+            //sql
+            db.Updateable(updateObj).Where("id=@x",new { x="1"}).ExecuteCommand();
 
             var t12 = db.Updateable<School>().AS("Student").UpdateColumns(it => new School() { Name = "jack" }).Where(it => it.Id == 1).ExecuteCommandAsync();
             t12.Wait();