Update core

Src/Asp.NetCore2/SqlSugar/Abstract/FastestProvider/FastBuilder.cs

@@ -9,6 +9,7 @@ namespace SqlSugar
 {
     public class FastBuilder 
     {
+        public virtual bool IsActionUpdateColumns { get; set; }
         public SqlSugarProvider Context { get; set; }
         public virtual string CharacterSet { get; set; }
         public virtual string UpdateSql { get; set; } = @"UPDATE TM