TODO - Project logistics

enable more clippy lints
enforce consistent style (derive order, struct initialization order)
cross-platform builds
document map model
- diagram of data sources and stages
- explanation of intermediate formats
- autogenerate diagrams of the data schemas
- list invariants
update with mission statement (democratized urb p, that quote, refashion existing space cheaply)
trailer
- show common parts of routes in A/B, point of divergence
- "Two parallel universes sit at your fingertips, and with the flick of a key, you can glide between the two. Buses jumping past traffic in one world, snarly traffic jam in the other. An A/B test revealing what currently is, and what could be, compared meticulously and deterministically. A/B Street -- which world do you prefer?"

Stability

test results per git commit
- way to view later
- also could be benchmarks; just arbitrary data over time
- also screenshots
things fixed-pt should solve
- determinism tests failing
- polyline intersection() finding a line hit, but then failing on get_slice_ending_at
improve test code and explore problems
- big timestep, does follow error blow up?
- alternative to scenario is a sequence of commands for tests
  - spawning code is becoming a BIG mess
- more tests: bikes, cars, peds starting/ending at borders
layered invariants
- first: all the maps fully convert and display in some form; all tests pass or are disabled
- eventually: every intersection has at least a turn, minimum lengths enforced, etc

line intersection code is giving completely silly results for 23rd
- Line::new( Pt2D::new(2220.510790392476, 17.372151672558502), Pt2D::new(2220.5166115696447, 15.152159304577435), ) and Line::new( Pt2D::new(2220.5127307848657, 16.63215421656464), Pt2D::new(2220.514671177255, 15.892156760571009), ) intersect, but first line doesn't contain_pt(Pt2D(2220.495346552271, 22.98459165963943))
bad shifted polylines on 45th st in 23rd map