Subbranch update scenarios

This branch adds empty, nhtsa, and evaluation scenarios, as well as empty and nhtsa configs. The evaluation configs are already there.

This will temporarily break colby benchmarks until that update is added.

This is a subbranch of !7 (merged)

graph TD;
  update-maps-->this-branch;

The subbranch of this branch must be merged first: !9 (merged)