Reduce crossings of connection lines

[beru]

This PR is a sequel of #1330, #1327 and #1261.

The crossings around the green rectangles are cleared.

retinanet_resnet50_fpn_v2_Opset18.onnx

Left : Before
Right : Ater

efficientdet-d3.onnx

Left : Before
Right : Ater

saved_model.pbtxt

Left : Before
Right : Ater

[lutzroeder]

@beru is it possible not regress existing layouts with this change? For example, in the yolov5n.onnx screenshot the residual and Sigmoid changed sides.

[beru]

@lutzroeder

is it possible not regress existing layouts with this change? For example, in the yolov5n.onnx screenshot the residual and Sigmoid changed sides.

I've resolved the problem. Now I don't see the unnecessary changes with yolov5n.onnx model.

---

I ran npm test but it failed before completion.

dot/mb_v1_ssd_with_flag.dot
TypeError: node.metadata.keys(...).every is not a function

I see the same error with current main branch (0ffe6bc)