Improve support for wave port boundaries in a SolidModel

[simlapointe]

Improve support to define wave port boundaries in a SolidModel:

• SolidModelTargets now take wave_port_layers, a list of layer symbols used to define wave port boundary conditions
• Added support for LineSegment in SolidModel
• Added add_wave_ports! to automatically place wave port boundaries where paths/routes intersect the simulation area
• Added option to use wave ports instead of lumped ports in the single transmon example

[codecov]

Codecov Report

❌ Patch coverage is 97.14286% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/polygons.jl	0.00%	2 Missing ⚠️
src/schematics/ExamplePDK/utils.jl	98.03%	1 Missing ⚠️

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[gpeairs]

This works nicely! I have just a few changes suggested below. I also have a couple Palace questions:

1. Is it possible to calculate port Q for wave ports?
2. Is it OK to use a wave port with an absorbing boundary condition around it? Does the 2D solve just treat the 1D boundary as PEC (I see there's this issue awslabs/palace#265)?

[simlapointe]

This works nicely! I have just a few changes suggested below. I also have a couple Palace questions:

1. Is it possible to calculate port Q for wave ports?
2. Is it OK to use a wave port with an absorbing boundary condition around it? Does the 2D solve just treat the 1D boundary as PEC (I see there's this issue awslabs/palace#265)?

Thanks for the feedback! I made changes in f60bc0d to address your comments and also added a warning when waveport transmission lines are not perpendicular to the domain boundary.

Regarding your questions:

1. Let me look into that, if it's possible to do so in an unambiguous way we will add that to the Palace TODOs.
2. Absorbing BCs in the 3D model will be set as PMC for the 2D waveport solve. If we want them to be PEC we should add "WavePortPEC": {"Attributes":[3]} to the config file. I tried it in the single transmon case and it does not seem to make much of a difference. FYI, the 3D boundaries that get mapped to PEC for the 2D waveport solve are PEC, Conductivity, WavePortPEC, and WavePort (in the case where multiple waveports share common edges), everything else gets mapped to PMC.

[gpeairs]

LGTM, thanks!