修复 AD盒推送IO时，会有异常包，ichanged=0，把它屏蔽掉

Project.FLY.FlyADBase/FlyADBase/FlyAD7.cs

@@ -780,8 +780,13 @@ namespace FlyADBase
                         }
                         else if (version == 2)
                         {
+                            
                             IStatus = pack.istatus;
                             OStatus = pack.ostatus;
+
+                            if (pack.inChange == 0)
+                                return;
+
                             Position = pack.pos1;
                             Position2 = pack.pos2;
                             DateTime dt = mSysTick.ToDateTime(pack.systick);