光幕触发修改为同步，消弭信号抖动问题 Excel导出测试

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2020-07-15 d3a44f202c0b12cbac67c71129c3c4f480df55b9

 src/Bro.UI.Model.Winform/ElementBase.cs

@@ -191,7 +191,7 @@
                {
                    ElementState preState = state;
                    Set(ref state, value);
                    EventRouter.ChangeElementsMouseState?.Invoke(this, preState, state);
                    EventRouter.TriggerElementsMouseStateChanged(this, preState, state);
                    switch (state)
                    {
                        case ElementState.MouseHover: