Support for Route longName translations

[Antiik91]

Summary

This PR will adds translation to Route's longName property.

Issue

This PR relates to issue #2832

Unit tests

Unit tests have been updated where necessary.

Documentation

Documentation hasn't been updated in this PR.

[codecov-commenter]

Codecov Report

Merging #4356 (b7d3fdb) into dev-2.x (0ead418) will increase coverage by 0.14%.
The diff coverage is 65.14%.

@@              Coverage Diff              @@
##             dev-2.x    #4356      +/-   ##
=============================================
+ Coverage      57.93%   58.08%   +0.14%     
- Complexity     11004    11071      +67     
=============================================
  Files           1450     1455       +5     
  Lines          58690    58776      +86     
  Branches        6758     6770      +12     
=============================================
+ Hits           34004    34139     +135     
+ Misses         22644    22599      -45     
+ Partials        2042     2038       -4     

Impacted Files	Coverage Δ
.../fares/impl/TimeBasedVehicleRentalFareService.java	0.00% <0.00%> (ø)
...opentripplanner/ext/fares/model/FareAttribute.java	63.63% <ø> (ø)
.../org/opentripplanner/ext/fares/model/FareRule.java	69.56% <0.00%> (ø)
...org/opentripplanner/ext/flex/FlexAccessEgress.java	90.90% <ø> (ø)
...t/java/org/opentripplanner/ext/flex/FlexIndex.java	76.92% <0.00%> (ø)
...g/opentripplanner/ext/flex/FlexibleTransitLeg.java	42.85% <0.00%> (ø)
...pplanner/ext/flex/template/FlexAccessTemplate.java	65.21% <0.00%> (ø)
...pplanner/ext/flex/template/FlexEgressTemplate.java	64.70% <0.00%> (ø)
...va/org/opentripplanner/ext/flex/trip/FlexTrip.java	71.42% <0.00%> (ø)
...opentripplanner/ext/flex/trip/UnscheduledTrip.java	49.49% <0.00%> (ø)
... and 221 more

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[hannesj]

If we add a null check in LegacyGraphQLUtils.startsWith, this could be simplified down to

Suggested change

	routeStream.filter(route -> {
	if (
	route.getShortName() != null &&
	LegacyGraphQLUtils.startsWith(route.getShortName(), name, environment.getLocale())
	) {
	return true;
	}
	return (
	route.getLongName() != null &&
	LegacyGraphQLUtils.startsWith(route.getLongName(), name, environment.getLocale())
	);
	});
	routeStream.filter(route ->
	LegacyGraphQLUtils.startsWith(route.getShortName(), name, environment.getLocale()) ||
	LegacyGraphQLUtils.startsWith(route.getLongName(), name, environment.getLocale())
	);

[Antiik91]

Done

[leonardehrenfried]

I like how concise the change is in the graphql API.