Hide RowSeparatorStroke if row is set to visible = false

[walter]

We have already fixed this:

GoJS 2.2.13 released

Changes for 2.2.13 Fixed asynchronous model loading which might intermittently fail to perform AvoidsNodes routing. Enhanced the ArrangingLayout extension to support placing the side nodes about the middle of the side, by supporting values such as go.Spot.Bottom for the ArrangingLayout.side property. Improved the “HyperlinkText” builder extension so that it works by default in Adornments and other Parts that are in temporary layers, by setting GraphObject.isActionable to true. Table panel sepa…