speed up transit ingestion (valhalla#4167)

* remove just_gtfs official version

* use sorted feeds to speed up processing

* changelog

* use new no copy interfaces with different validity semantics

* lint changelog

* lint

* fix one of the test failures but the calendar part doesnt make sense..

* fix last bug, ready to ship

* fix yet another range bug. i see why c++20 made these first class citizens of stl

.gitmodules

@@ -45,4 +45,4 @@
 	url = https://github.com/jarro2783/cxxopts.git
 [submodule "third_party/just_gtfs"]
 	path = third_party/just_gtfs
-	url = https://github.com/mesozoic-drones/just_gtfs.git
+	url = https://github.com/valhalla/just_gtfs

CHANGELOG.md

@@ -11,6 +11,7 @@
    * ADDED: CI runs a spell check on the PR to detect spelling mistakes [#4179](https://github.com/valhalla/valhalla/pull/4179)
    * ADDED: `preferred_side_cutoff` parameter for locations [#4182](https://github.com/valhalla/valhalla/pull/4182)
    * ADDED: PBF output for matrix endpoint [#4121](https://github.com/valhalla/valhalla/pull/4121)
+   * CHANGED: sped up the transit gtfs ingestion process by sorting the feeds before querying them and avoiding copying their structures. forked just_gtfs into the valhalla org to accomplish it [#4167](https://github.com/valhalla/valhalla/pull/4167)
 
 ## Release Date: 2023-05-11 Valhalla 3.4.0
 * **Removed**
@@ -97,7 +98,7 @@
    * ADDED: Added has_toll, has_highway, has_ferry tags to summary field of a leg and route and a highway tag to a maneuver if it includes a highway. [#3815](https://github.com/valhalla/valhalla/issues/3815)
    * ADDED: Add time info to sources_to_targets [#3795](https://github.com/valhalla/valhalla/pull/3795)
    * ADDED: "available_actions" to the /status response [#3836](https://github.com/valhalla/valhalla/pull/3836)
-   * ADDED: "waiting" field on input/output intermediate break(_through) locations to respect services times [#3849](https://github.com/valhalla/valhalla/pull/3849)
+   * ADDED: "waiting" field on input/output intermediate break(\_through) locations to respect services times [#3849](https://github.com/valhalla/valhalla/pull/3849)
    * ADDED: --bbox & --geojson-dir options to valhalla_build_extract to only archive a subset of tiles [#3856](https://github.com/valhalla/valhalla/pull/3856)
    * CHANGED: Replace unstable c++ geos API with a mix of geos' c api and boost::geometry for admin building [#3683](https://github.com/valhalla/valhalla/pull/3683)
    * ADDED: optional write-access to traffic extract from GraphReader [#3876](https://github.com/valhalla/valhalla/pull/3876)