Adds bus stop map.

[francocipollone]

🎉 New feature

Closes #28

Summary

• Bus stop map is added

XODR

It is a single road (two-way) devided in three lane sections(LS):

• LS0: 2 lanes ( 1, -1)
• LS1: 3 lanes (2, 1, -1) -> Lane 2 is of type: special1 (bus stop for our case)
• LS2: 2 lanes ( 1, -1)

It is oriented South->North

geoJSON

• Only provides information about the lane(bus stop lane) that is of type Special 1 and its boundaries.

Test it

WIDTH=4 EXTENSIONS_LENGTH=30 BUS_STOP_LENGTH=15 empy3 templates/bus_stop.xml.em > generated_file.xodr

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if it affects the public API)

[francocipollone]

CC: @liangfok
Here there are the generated xodr and geojson files.
https://github.com/maliput/maliput_xodr/tree/francocipollone/bus_stop/resources/bus_stop

[liangfok]

Thanks. I'll test this ASAP.

[francocipollone]

From internal chat this map has to change to:

[francocipollone]

And geojson information provides info ONLY about the bus stop lane.
(Left boundary, center linestring(Lane of type: Special 1") and right boundary )

[francocipollone]

Ready for another pass @liangfok

[liangfok]

Thanks, I'll test this ASAP.

[francocipollone]

Gently ping to check if this PR is mergeable as it is. @liangfok

[francocipollone]

I need to fix minor conflicts due to the last PRs that got merged. However, let me know if this PR is mergeable @liangfok

[liangfok]

Sorry, not yet. The bus stop map continues to be relatively low priority as of now. We're focused on getting some of the other maps to work in our downstream project before returning to this map. It'll probably be another month or so before we need this map, but I'd appreciate if you could resolve the conflicts in the meantime.

[francocipollone]

Increses lead-in lead-out extensions to 300.