Verify that bicycle route-choice algorithm is reasonable

[Nate-Wessel]

I need to decide on a representative route-selection strategy and ensure this is properly instantiated in the OSRM bike.lua profile, or create such a profile. Another alternative is to define several strategies and let uses choose with some degree of interactive preference specification.

[Nate-Wessel]

It seems like this is a pretty key issue and should be a top priority for this project. There's been a lot of discussion of potential improvements to the default bicycle profile over at https://github.com/Project-OSRM/osrm-backend, but seemingly no progress in the last two years or so.

Frankly, the default profile is a bit of a mess. I really need to make an effort to understand what all is going on in there, and then cut out the stuff that doesn't make sense.