INRIX network conflation: update and simplify

[chunhochow]

Specific items also TODO:

• Any inputs to the scripts should be saved as config files (e.g. the file that's currently still unused from this step https://github.com/sfcta/CMP_Scripts/blob/0a768c390bd550b8d8aedec2b65acf056d6d6070/INRIX/xd_segments/README.md?plain=1#L52 )

[chunhochow]

Joe/Drew: The CMP pipeline (including conflation) is documented at O:\Presentations, Conferences, Training, Awards\Conferences, Awards\TRB\2021\Annual Meeting\CMP Pipeline. There's also some scripts at Q:\Model Projects\101_280\notebooks\Validation. One of them, compare_correspondences.ipynb, is meant to assess the quality of alternative corresonponce files.