[multiple layers] not enough stitching vias on some GND polygons

e.g.

[L3] X:53mm Y:61mm - "antenna" from GND polygon, either remove or add stitching vias
[L3] X:180mm Y:26mm - GND polygon could have more vias to GND plane in places where it does not collide with traces on other layers.

The issue is not valid anymore if GND polygons are removed from signal layers (#198 (closed))

Edited Jul 06, 2020 by Grzegorz Daniluk

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