Add suport for importing CO₂ emission per trip leg

[t2gran]

Summary

This PR add support for importing emissions on trip leg. The emissions.txt CSV input format looks like this:

trip_id, from_stop_id, from_stop_sequence, co2
MY:ServiceJourney:1, NSR:Quay:300, 1, 150.0
MY:ServiceJourney:1, NSR:Quay:301, 2, 230.0
MY:ServiceJourney:1, NSR:Quay:302, 3, 459.0

The plan is to add support for TripOnServiceDay later. This input format put the entire emission calculation
responsibility on the producer of the input. OTP only decorate itinerary legs by adding the trips "legs" used.

This Transmodel API is NOT updated, this will be done in a separate PR.

Some notes:

• This PR rename the OTPFature to Emission was (Co2Emissions).
• All use of emissions (plural) is replaced with emission (singular) in calss, variable and package names following the code convention. A few places is left where the emission variable was indeed more than one Emission (array of Emissions). The user and JavaDoc is updated, but the plural is kept where it is natural.
• The GTFS API is NOT changed, it has a type and variables called Emissions.
• The config is changed! The root element is renamed emission, not emissions in build-config.json.
• I changed the emission lookup of the existing Route approch from using Agency.feed + Route.id.idto use just Route.id. I guess this was a mistake? (DefaultEmissionService line 33)

Issue

I have not tested, but it should fix #6609

Unit tests

✅ The emission module now have close to 100% branch coverage, I have also added unit-tests on the old code - witch had poor and missing test coverage.

Documentation

🟥 I have not added use documentation yet.

Changelog

🟥 This is a Sandbox featue, I will add user doc/changelog in a later PR.

Bumping the serialization version id

✅ The serialization is changed.

[codecov]

Codecov Report

Attention: Patch coverage is 85.21257% with 80 lines in your changes missing coverage. Please review.

Project coverage is 71.15%. Comparing base (95e9d70) to head (9aa0be2).
Report is 4 commits behind head on dev-2.x.

Files with missing lines	Patch %	Lines
...rg/opentripplanner/graph_builder/GraphBuilder.java	0.00%	19 Missing ⚠️
...planner/graph_builder/GraphBuilderDataSources.java	0.00%	8 Missing ⚠️
...emission/configure/EmissionGraphBuilderModule.java	0.00%	6 Missing ⚠️
.../internal/csvdata/csvparser/AbstractCsvParser.java	87.75%	6 Missing ⚠️
...on/internal/graphbuilder/EmissionGraphBuilder.java	85.29%	3 Missing and 2 partials ⚠️
...ner/standalone/configure/ConstructApplication.java	0.00%	5 Missing ⚠️
.../org/opentripplanner/apis/gtfs/GraphQLScalars.java	0.00%	4 Missing ⚠️
.../emission/internal/csvdata/EmissionDataReader.java	84.21%	1 Missing and 2 partials ⚠️
...va/org/opentripplanner/utils/lang/DoubleRange.java	81.25%	0 Missing and 3 partials ⚠️
...t/emission/configure/EmissionRepositoryModule.java	0.00%	2 Missing ⚠️
... and 13 more

Additional details and impacted files

@@              Coverage Diff              @@
##             dev-2.x    #6614      +/-   ##
=============================================
+ Coverage      71.03%   71.15%   +0.11%     
- Complexity     18296    18436     +140     
=============================================
  Files           2005     2024      +19     
  Lines          75849    76171     +322     
  Branches        7779     7790      +11     
=============================================
+ Hits           53882    54196     +314     
- Misses         19222    19229       +7     
- Partials        2745     2746       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.