Multi-margin obstacle scoring for ijump astar

[seveibar]

Instead of having a single obstacle margin, we should have many obstacle margins that each have different penalties associated with them, the further you are from the obstacle the less bad it is

[homie-gg]

Here are some pull requests that might be helpful reference for this task:

• ijump Support for multi-trace routing, conjoined obstacle detection (20% on traces-100)
• ijump-max (ijump v2) algorithm, enhancements to logging, refactor infinite grid autorouter
• add layers to obstacles

[homie-gg]

This might have already been done via: ijump multi-margin implementation.