Buggy lane routing on complex intersections

[Elesbaan70]

When there are multiple outgoing segments in the same direction, RoutingManager doesn't know what to do with it.

Note how in these examples, both left-turn lanes are routed to both outgoing lanes.

[kianzarrin]

I am loving the routing detector tool. how did we live so far without it?!

[Elesbaan70]

This overlaps some of the lane routing needs for displaced lanes, so I'll fix it at the same time.

[kianzarrin]

I think its better to fix separately. divide the work into smaller pieces to avoid a large PR that is hard to manage.

[Elesbaan70]

Actually, the lane routing logic for lane groups will inherently resolve this, since each outgoing segment's lanes will be treated as a group.

And yes, it will be a big PR, but mostly limited to one class. The size and scope of the lane routing changes is what made me finally decide to make lane grouping an epic.

[kianzarrin]

i hope there is not too many merge conflicts with my PRs

[kianzarrin]

there is a all-kian branch that includes all those changes in one branch.

[Elesbaan70]

If you're talking about your RoutingManager work, I will be writing completely new code, so there shouldn't be many conflicts. See #1593.