Improve performance for nested CompositeComponents

[gpeairs]

Implements #39 (proposal 4, composite components remember their hooks) and modifies transformation(::Schematic, ::ComponentNode) to avoid unnecessary searching. Deeply nested composite components should no longer show ~quadratic slowdown. Also takes a couple steps towards being more strict about coordinate type consistency in the Schematic.

[codecov]

Codecov Report

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[gpeairs]

Cuts floorplanning time by 80% for DemoQPU17. Also junction rotation checking by 98%. Before:

Assembling schematic graph: 0.004190 seconds (39.59 k allocations: 3.764 MiB)
Floorplanning: 0.700999 seconds (5.49 M allocations: 371.339 MiB, 8.49% gc time, 0.79% compilation time)
Schematic design rule checking: 0.100096 seconds (908.97 k allocations: 43.558 MiB, 13.28% gc time)
Generating crossovers: 1.949626 seconds (2.18 M allocations: 161.057 MiB, 0.68% gc time)
Ground-plane hole fill: 0.607943 seconds (5.14 M allocations: 335.287 MiB, 4.62% gc time)
Rendering to polygons: 0.699862 seconds (5.78 M allocations: 299.489 MiB, 3.03% gc time)
Flattening cells: 0.054393 seconds (273.14 k allocations: 21.864 MiB)
Total: 4.122284 seconds (19.88 M allocations: 1.210 GiB, 3.28% gc time, 0.13% compilation time)
Saving: 0.412568 seconds (190.17 k allocations: 49.931 MiB)

After:

Assembling schematic graph: 0.005110 seconds (46.95 k allocations: 4.087 MiB)
Floorplanning: 0.128501 seconds (829.47 k allocations: 57.578 MiB, 10.84% gc time, 4.20% compilation time)
Schematic design rule checking: 0.002055 seconds (4.02 k allocations: 225.969 KiB)
Generating crossovers: 1.995282 seconds (482.94 k allocations: 76.544 MiB, 0.73% gc time)
Ground-plane hole fill: 0.605566 seconds (5.43 M allocations: 355.211 MiB, 4.71% gc time)
Rendering to polygons: 0.639860 seconds (5.79 M allocations: 299.579 MiB, 3.77% gc time)
Flattening cells: 0.052672 seconds (273.13 k allocations: 21.864 MiB)
Total: 3.437676 seconds (12.92 M allocations: 817.623 MiB, 2.46% gc time, 0.16% compilation time)
Saving: 0.422955 seconds (190.17 k allocations: 49.931 MiB, 1.11% gc time)

First-run compile time for plan is also down by 8 seconds but that's just because it was previously compiling some geometry which is now just compiled later.