Refactor segment update code

[TheMarex]

Currently we are doing updates of our edge weight in osrm-contract in the following two phases:

1. Parse all the CSV files and build a global lookup table of speed overrides.
2. Update each individual segment in the compressed geometry.
3. Update all edge-based-edges using the .segment_lookup file and .turn_duration_penalty, .turn_weight_penalty.

However since we originally implemented this there have been some structural changes that would allow us to drop using the .segment_lookup file.

1. Parse all the CSV files and build a global lookup table of speed overrides
2. Convert the speed/rate value to a duration/weight value using the segment distance (calculate from the coordinates)
3. Update the compressed geometry, sum up all per-segment values and populate hash map GeometryID -> {weight,duration}
4. Iterate over all edge based edges, use EdgeBasedEdge::id to lookup GeometryID from OriginalEdgeData
5. Use GeometryID to check for new duration/weight value, combine value with the turn penalty. If there is no new value for the GeometryID but we only updated the turn penalty we need to re-calculate the sum of all weight/duration values for this GeometryID.

Related to #3349.

/cc @danpat @oxidase @karenzshea

[TheMarex]

We now only use data.turn_id for the indexing in the update.